Chemistry › Thermochemistry
Thermochemistry Questions
717 questions across 11 subtopics — with step-by-step solutions.
Adiabatic Process/Polytropic(27)
- Given,Enthalpy change whenmole of, a stron... | Chemistry | TestHub
- In a constant volume calorimeter, 3.5 g of... | Chemistry | TestHub
- Which chemical change among the following... | Chemistry | TestHub
- The standard molar heat of formation of et... | Chemistry | TestHub
- The standard enthalpy of formation of gase... | Chemistry | TestHub
- If heat of dissociation ofis, the,for the... | Chemistry | TestHub
- The heats of combustion ofcarbon and hydro... | Chemistry | TestHub
- Calculatefor chloride ion from the followi... | Chemistry | TestHub
- The lattice energy of solid NaCl is 180 kc... | Chemistry | TestHub
- When one mole of zinc dust and one mole of... | Chemistry | TestHub
- The heat of neutralisation of a strong bas... | Chemistry | TestHub
- The enthalpy of neutralisation of NH4OH an... | Chemistry | TestHub
- Substancecan undergo decomposition to form... | Chemistry | TestHub
- If Bond energies ofbonds are 83 Kcal, 140... | Chemistry | TestHub
- Thebond energy is ifkJ/mol;kJ/mol andkJ/mol | Chemistry | TestHub
- Combustion of glucose takes place accordin... | Chemistry | TestHub
- Calculate heat of atomization of furan in... | Chemistry | TestHub
- What is the true regarding complete combus... | Chemistry | TestHub
- The combustion of benzenegivesand. Given t... | Chemistry | TestHub
- If enthalpy of hydrogenation ofintoisand r... | Chemistry | TestHub
- Heat of combustion ofisand that ofon combu... | Chemistry | TestHub
- The standard enthalpy of formation of NH3i... | Chemistry | TestHub
- The enthalpy of vaporization of liquid wat... | Chemistry | TestHub
- Given,What is the magnitude of standard en... | Chemistry | TestHub
- Calculate the heat produced (in) whenofis... | Chemistry | TestHub
- Silanes are silicon hydrides of general fo... | Chemistry | TestHub
- 2 moles of solid benzoic acid undergoes co... | Chemistry | TestHub
Bond Enthalpy(62)
- Find the bond enthalpy (in kJ/mol) of one... | Chemistry | TestHub
- The Si–Cl bond energy can be calculated fr... | Chemistry | TestHub
- The bond enthalpy of C≡N bond (kJ/mol) is | Chemistry | TestHub
- The enthalpy of combustion of methane gas... | Chemistry | TestHub
- What is the ratio of the enthalpy yield on... | Chemistry | TestHub
- For chemical reactionC(s)graphite + 1/2CO2... | Chemistry | TestHub
- The enthalpy of formation of the free radi... | Chemistry | TestHub
- Find the bond enthalpy (in kJ/mol) of 'thr... | Chemistry | TestHub
- Given the bond dissociation enthalpy of th... | Chemistry | TestHub
- The enthalpy of hydrogenation of CH3CH2CN... | Chemistry | TestHub
- Find bond enthalpy of (in ) using the foll... | Chemistry | TestHub
- Find the bond enthalpy (in ) of one "three... | Chemistry | TestHub
- Calculate the C-C bond energy in ethane fr... | Chemistry | TestHub
- From the following data at 25°C, which of... | Chemistry | TestHub
- The enthalpy of hydrogenation of CH3CN (kJ... | Chemistry | TestHub
- The polymerization of propylene to polypro... | Chemistry | TestHub
- Find the enthalpy of gas-phase trimerisati... | Chemistry | TestHub
- From the following data at 25°C, which of... | Chemistry | TestHub
- Estimate Δf H° [Pyridine(l)] (in kJ/mol) f... | Chemistry | TestHub
- What is the enthalpy change for the isomer... | Chemistry | TestHub
- For the reaction: N₂H₄(g) → N₂H₂(g) + H₂(g... | Chemistry | TestHub
- The enthalpy change at 298 K for decomposi... | Chemistry | TestHub
- The enthalpy changes at 298 K in successiv... | Chemistry | TestHub
- If bond enthalpy of \mathrm{C}-\mathrm{C}... | Chemistry | TestHub
- Consider the following isomerization proce... | Chemistry | TestHub
- The bond enthalpy of C≡N bond (kJ/mol) is | Chemistry | TestHub
- Find (\mathrm{N}-\mathrm{N}) bond enthalpy... | Chemistry | TestHub
- Given the bond dissociation enthalpy of CH... | Chemistry | TestHub
- White phosphorus is a tetra-atomic solid \... | Chemistry | TestHub
- Consider the following isomerization proce... | Chemistry | TestHub
- Estimate ΔH° (kJ) for the combustion of me... | Chemistry | TestHub
- The enthalpy of formation of the free radi... | Chemistry | TestHub
- Which of the following molecules will have... | Chemistry | TestHub
- Given the following data: Enthalpy of subl... | Chemistry | TestHub
- The bond enthalpies of C-C, C=C and C≡C bo... | Chemistry | TestHub
- What is the enthalpy change for the isomer... | Chemistry | TestHub
- Calculate the enthalpy of the following ho... | Chemistry | TestHub
- The polymerization of ethylene to linear p... | Chemistry | TestHub
- The bond enthalpies of C-C, C=C and C≡C bo... | Chemistry | TestHub
- Calculate the enthalpy of the following ho... | Chemistry | TestHub
- Calculate the enthalpy change for the isom... | Chemistry | TestHub
- Consider the reaction: The signs of and fo... | Chemistry | TestHub
- Estimate Δf H° [Pyridine(l)] (in kJ/mol) f... | Chemistry | TestHub
- The bond enthalpy of C-C bond (kJ/mol) is | Chemistry | TestHub
- The bond dissociation enthalpy of the free... | Chemistry | TestHub
- Which of the following molecules will have... | Chemistry | TestHub
- Using the data provided, calculate the mul... | Chemistry | TestHub
- At 298 K, the bond dissociation enthalpies... | Chemistry | TestHub
- The enthalpy of combustion of acetylene is... | Chemistry | TestHub
- Find the bond energy of the O-O bond from... | Chemistry | TestHub
- White phosphorus is a tetra-atomic solid \... | Chemistry | TestHub
- The enthalpy of atomisation of PCl3(g) is... | Chemistry | TestHub
- Standard enthalpy of formation of gaseous... | Chemistry | TestHub
- Find the bond enthalpy (in kJ/mol) of 'thr... | Chemistry | TestHub
- Given the data below :/mole /mole /mole /m... | Chemistry | TestHub
- Find the bond energy of S-S bond from the... | Chemistry | TestHub
- The standard enthalpy of atomisation of \m... | Chemistry | TestHub
- The bond dissociation enthalpy of the free... | Chemistry | TestHub
- The reaction \mathrm{CH}_{4}(\mathrm{~g})+... | Chemistry | TestHub
- Compute the magnitude enthalpy of formatio... | Chemistry | TestHub
- The bond enthalpy of C-C bond (kJ/mol) is | Chemistry | TestHub
- Standard enthalpy of formation of gaseous... | Chemistry | TestHub
Born Haber Cycle(22)
- Select correct statement | Chemistry | TestHub
- Calculate ΔHvap [CH3COOH(l)] in kJ/mol fro... | Chemistry | TestHub
- Carefully observe the given diagram which... | Chemistry | TestHub
- Calculate the magnitude of proton affinity... | Chemistry | TestHub
- Calculate the proton affinity of NH3(g) fr... | Chemistry | TestHub
- Given that (i) Heat of solution for is (ii... | Chemistry | TestHub
- The oxidising power of iodine in aqueous s... | Chemistry | TestHub
- For an ionic solid MX2, where X is monoval... | Chemistry | TestHub
- Calculate the enthalpy change (in kcal) fo... | Chemistry | TestHub
- From the given data regarding enthalpy cha... | Chemistry | TestHub
- Calculate the enthalpy change (in kcal) fo... | Chemistry | TestHub
- Calculate ΔHvap [CH3COOH(l)] in kJ/mol fro... | Chemistry | TestHub
- Carefully observe the given diagram which... | Chemistry | TestHub
- Number of compounds having MORE magnitude... | Chemistry | TestHub
- For an ionic solid \mathrm{MX}_{2} , where... | Chemistry | TestHub
- Calculate proton affinity of NH3(g) from t... | Chemistry | TestHub
- Consider the following Born-Haber's cycle... | Chemistry | TestHub
- Carefully observe the given diagrams which... | Chemistry | TestHub
- Value of "x" is \_\_\_\_ . (in \mathrm{kJ}... | Chemistry | TestHub
- The hydrogen bond between F- and CH3COOH i... | Chemistry | TestHub
- The hydrogen bond between F- and CH3COOH i... | Chemistry | TestHub
- For an ionic solid MX2, where X is monoval... | Chemistry | TestHub
Enthalpy of Combustion(104)
- In a constant volume calorimeter, of a gas... | Chemistry | TestHub
- coal is burnt in a bomb calorimeter in exc... | Chemistry | TestHub
- The difference in \Delta \mathrm{H} and \D... | Chemistry | TestHub
- Statement 1: The magnitude of the enthalpy... | Chemistry | TestHub
- Statement 1: The magnitude of enthalpy of... | Chemistry | TestHub
- Moles of CO formed is | Chemistry | TestHub
- What is the heat of combustion of xylose,... | Chemistry | TestHub
- Moles of CO formed is | Chemistry | TestHub
- An athlete takes 20 breaths per minute at... | Chemistry | TestHub
- How much heat (in MJ) is evolved per day ?... | Chemistry | TestHub
- The carbon dioxide exhaled in the breath o... | Chemistry | TestHub
- Assume that for a domestic hot water suppl... | Chemistry | TestHub
- Mass of oxygen reacted with carbon is | Chemistry | TestHub
- A volume of 4.0 l of a mixture of ethylene... | Chemistry | TestHub
- A quantity of 0.3 g of carbon was converte... | Chemistry | TestHub
- The enthalpy of combustion (in kcal/mol) o... | Chemistry | TestHub
- If the safe level of CO in the atmosphere... | Chemistry | TestHub
- The heat evolved on combustion of 1 g of s... | Chemistry | TestHub
- What is the magnitude work done by the sys... | Chemistry | TestHub
- The value of Δc H of C8H18(l) is (in kcal/... | Chemistry | TestHub
- The heat of combustion of methane at const... | Chemistry | TestHub
- When one mole of \mathrm{C}_{6} \mathrm{H}... | Chemistry | TestHub
- From the following data, calculate the ent... | Chemistry | TestHub
- Sabu should rescue Chacha Chaudhary within... | Chemistry | TestHub
- What will be the final pressure (approxima... | Chemistry | TestHub
- Which of the reaction will generate the gr... | Chemistry | TestHub
- From the following data, calculate the ent... | Chemistry | TestHub
- The heat of combustion of ethanol in a bom... | Chemistry | TestHub
- The heat of combustion of methane at const... | Chemistry | TestHub
- At 300 K, the standard enthalpies of forma... | Chemistry | TestHub
- Calculate enthalpy of combustion of \mathr... | Chemistry | TestHub
- Heat of combustion of \mathrm{CH}_{4}, \ma... | Chemistry | TestHub
- An athlete takes 15 breaths per minute at... | Chemistry | TestHub
- The enthalpies of combustion of acetaldehy... | Chemistry | TestHub
- Which oxidizing agent will generate the gr... | Chemistry | TestHub
- A volume of 1.642 l sample of a mixture of... | Chemistry | TestHub
- When carbon is burnt in a limited supply o... | Chemistry | TestHub
- Which of the following gases will liberate... | Chemistry | TestHub
- The enthalpy of combustion of butane is -2... | Chemistry | TestHub
- The enthalpies of combustion of formaldehy... | Chemistry | TestHub
- Given the data below :What should be the b... | Chemistry | TestHub
- A volume of 2.463 l sample of a mixture of... | Chemistry | TestHub
- The standard molar enthalpies of formation... | Chemistry | TestHub
- When 1.2 g graphite is burnt in limited su... | Chemistry | TestHub
- In order to get maximum calorific output,... | Chemistry | TestHub
- The value of Δr H for the reaction:C6H14(l... | Chemistry | TestHub
- When carbon is burnt in a definite amount... | Chemistry | TestHub
- Which oxidizing agent will generate the gr... | Chemistry | TestHub
- The heat of combustion of starch is about... | Chemistry | TestHub
- The value of Δc H of C6H14(l) (forming CO2... | Chemistry | TestHub
- Calculate the enthalpy of combustion of be... | Chemistry | TestHub
- Which of the reaction will generate the le... | Chemistry | TestHub
- Statement 1: The magnitude of enthalpy of... | Chemistry | TestHub
- Calculate the heat produced (in Mcal) when... | Chemistry | TestHub
- Only gases remains after 9.0 g of carbon i... | Chemistry | TestHub
- Which oxidizing agent will generate the gr... | Chemistry | TestHub
- At 300 K, the standard enthalpies of forma... | Chemistry | TestHub
- How many moles of O2 are consumed in the c... | Chemistry | TestHub
- ΔHf° for CO2(g) and H2O(l) are -94.0 and -... | Chemistry | TestHub
- Hydrazine, a component of rocket fuel, und... | Chemistry | TestHub
- Which of the following gas will liberate m... | Chemistry | TestHub
- Statement 1: For the reaction N2(g) + 3H2(... | Chemistry | TestHub
- The heat of combustion of solid benzoic ac... | Chemistry | TestHub
- Standard enthalpy of formation of three co... | Chemistry | TestHub
- In order to get maximum calorific output,... | Chemistry | TestHub
- Only gases remains after 15.0 g of carbon... | Chemistry | TestHub
- One mole of graphite and diamond were sepa... | Chemistry | TestHub
- If enthalpies of formation for \mathrm{C}_... | Chemistry | TestHub
- Standard enthalpy of formation of three co... | Chemistry | TestHub
- The enthalpy of combustion (in kcal/mol) o... | Chemistry | TestHub
- The standard enthalpy of combustion of suc... | Chemistry | TestHub
- What will be the final pressure (approxima... | Chemistry | TestHub
- ΔH of which of the following reaction(s) m... | Chemistry | TestHub
- Assume that for a domestic hot water suppl... | Chemistry | TestHub
- The standard molar enthalpies of formation... | Chemistry | TestHub
- The heat evolved on combustion of 1 g of s... | Chemistry | TestHub
- The heat evolved on combustion of 1 g of s... | Chemistry | TestHub
- Mass of oxygen reacted with carbon is | Chemistry | TestHub
- ΔHf° for CO2(g) and H2O(l) are -94.0 and -... | Chemistry | TestHub
- A slice of banana weighing 2.5 g was burnt... | Chemistry | TestHub
- A quantity of 0.6 g of carbon was converte... | Chemistry | TestHub
- What is the magnitude of work done by the... | Chemistry | TestHub
- Which oxidizing agent will generate the gr... | Chemistry | TestHub
- What will be the maximum temperature (appr... | Chemistry | TestHub
- When 3.0 g graphite is burnt in limited su... | Chemistry | TestHub
- How many moles of CO2 are produced? | Chemistry | TestHub
- Calculate the internal energy of combustio... | Chemistry | TestHub
- If the enthalpy of combustion of is , then... | Chemistry | TestHub
- How many moles of CO2 are produced? | Chemistry | TestHub
- How many moles of H2O are produced? | Chemistry | TestHub
- Codes: P Q R S | Chemistry | TestHub
- ΔH of which of the following reaction(s) m... | Chemistry | TestHub
- The enthalpies of combustion of C(graphite... | Chemistry | TestHub
- Butane exist in various conformations in n... | Chemistry | TestHub
- A slice of apple weighing 3.0 g was burnt... | Chemistry | TestHub
- A volume of 2.46 l of a mixture of ethane... | Chemistry | TestHub
- The heat of combustion of glycogen is abou... | Chemistry | TestHub
- For the allotropic change represented by t... | Chemistry | TestHub
- The value of Δr H for the reaction:C8H18(l... | Chemistry | TestHub
- What will be the maximum temperature (appr... | Chemistry | TestHub
- The carbon dioxide exhaled in the breath o... | Chemistry | TestHub
- The enthalpy of combustion of cyclohexane,... | Chemistry | TestHub
- Identify the incorrect statement - | Chemistry | TestHub
- How many gram of sucrose \left(\mathrm{C}_... | Chemistry | TestHub
Enthalpy of Formation(64)
- The enthalpy of formation (in kcal/mol) of... | Chemistry | TestHub
- \Delta \mathrm{H}_{\mathrm{f}}^{0} of \mat... | Chemistry | TestHub
- The enthalpies of formation of FeO(s) and... | Chemistry | TestHub
- Which of the following have at 298 K? | Chemistry | TestHub
- Enthalpy of formation of \mathrm{C}_{2} \m... | Chemistry | TestHub
- The standard molar enthalpies of formation... | Chemistry | TestHub
- Calculate \Delta \mathrm{S}_{\text {univer... | Chemistry | TestHub
- Which of the following is true? | Chemistry | TestHub
- Enthalpy of the reaction: Ag+(aq) + I-(aq)... | Chemistry | TestHub
- Calculate the enthalpy of formation (in kc... | Chemistry | TestHub
- Enthalpy of the reaction: Ag+(aq) + Br-(aq... | Chemistry | TestHub
- Calculate the enthalpy change (in kcal/mol... | Chemistry | TestHub
- For which one of the following equations i... | Chemistry | TestHub
- For which of the following substance(s), t... | Chemistry | TestHub
- Which of the following is/are endothermic... | Chemistry | TestHub
- At 25^{\circ} \mathrm{C} and 1 atm pressur... | Chemistry | TestHub
- The enthalpy of formation (in kcal/mol) of... | Chemistry | TestHub
- Find the standard enthalpy of formation of... | Chemistry | TestHub
- List-I List-II(P) \quad \mathrm{O}_{2}(\ma... | Chemistry | TestHub
- Which of the following reactions define mo... | Chemistry | TestHub
- Calculate the enthalpy of formation (in kc... | Chemistry | TestHub
- The enthalpy of formation of NaCl(s) from... | Chemistry | TestHub
- The standard enthalpy of formation of \mat... | Chemistry | TestHub
- Which of the following has a standard enth... | Chemistry | TestHub
- Carefully observe the given diagrams which... | Chemistry | TestHub
- The enthalpy of formation of liquid methyl... | Chemistry | TestHub
- The enthalpies of formation of \mathrm{FeO... | Chemistry | TestHub
- \mathrm{S}+\frac{3}{2} \mathrm{O}_{2} \lon... | Chemistry | TestHub
- The enthalpies of formation of \mathrm{FeO... | Chemistry | TestHub
- Calculate enthalpy of formation of D-ribos... | Chemistry | TestHub
- The standard molar enthalpies of formation... | Chemistry | TestHub
- In the following question, two statements... | Chemistry | TestHub
- Enthalpy of formation of \mathrm{H}_{2} \m... | Chemistry | TestHub
- Find \Delta_{f} \mathrm{H}^{\circ} for \ma... | Chemistry | TestHub
- A quantity that cannot be directly measure... | Chemistry | TestHub
- Heats of combustion of graphite and hydrog... | Chemistry | TestHub
- Calculate the standard enthalpy of formati... | Chemistry | TestHub
- Which of the reaction(s) defines \Delta \m... | Chemistry | TestHub
- Given the following thermochemical reactio... | Chemistry | TestHub
- For which of the following substance(s), t... | Chemistry | TestHub
- The enthalpy of formation of liquid water... | Chemistry | TestHub
- Match the columnsColumn IColumn IIP) Fe(s)... | Chemistry | TestHub
- The enthalpies of formation of SnO(s) and... | Chemistry | TestHub
- Statement 1: Standard enthalpy of isomeriz... | Chemistry | TestHub
- Calculate the enthalpy of formation of ion... | Chemistry | TestHub
- Match the columnsColumn IColumn IIP) Sb(s)... | Chemistry | TestHub
- Which of the following is/are endothermic... | Chemistry | TestHub
- The enthalpy of formation of liquid ethyl... | Chemistry | TestHub
- If the enthalpies of formation of \mathrm{... | Chemistry | TestHub
- Calculate the enthalpy of formation of I2O... | Chemistry | TestHub
- The enthalpy of formation of KCl(s) from t... | Chemistry | TestHub
- The standard molar enthalpies of formation... | Chemistry | TestHub
- The standard molar enthalpies of formation... | Chemistry | TestHub
- Match the following. | Chemistry | TestHub
- Calculate the enthalpy of formation (in kc... | Chemistry | TestHub
- Match the reactions given in List-I with c... | Chemistry | TestHub
- If values of \Delta \mathrm{H}_{\mathrm{f}... | Chemistry | TestHub
- The enthalpy of formation of liquid water... | Chemistry | TestHub
- Calculate the enthalpy of formation (in kc... | Chemistry | TestHub
- A quantity that cannot be directly measure... | Chemistry | TestHub
- Statement 1: The standard enthalpy of form... | Chemistry | TestHub
- If the enthalpy of formation and enthalpy... | Chemistry | TestHub
- Identify the wrong statements. | Chemistry | TestHub
- The heat of formation of one mole of HI fr... | Chemistry | TestHub
Enthalpy of Neutralisation(45)
- of is mixed with of The molar heat of neut... | Chemistry | TestHub
- Which of the following mixing of 1 M base... | Chemistry | TestHub
- Volumes of 50 ml of 1 M-NaOH and 50 ml of... | Chemistry | TestHub
- The enthalpies of neutralization of a stro... | Chemistry | TestHub
- When 1 g-equivalent of strong acid reacts... | Chemistry | TestHub
- The enthalpy change for KOH(aq) + HNO3(aq)... | Chemistry | TestHub
- Given: ; ; Calculate the total enthalpy of... | Chemistry | TestHub
- The enthalpy change for the reaction, NaOH... | Chemistry | TestHub
- When 1 g-equivalent of a strong acid react... | Chemistry | TestHub
- Statement 1: Heat evolved when 1 mole of H... | Chemistry | TestHub
- Two solutions, initially at 25°C, were mix... | Chemistry | TestHub
- Volumes of 50 ml of 1 M-NaOH and 50 ml of... | Chemistry | TestHub
- Enthalpy of neutralization of \mathrm{H}_{... | Chemistry | TestHub
- Column I contains some chemical reactions... | Chemistry | TestHub
- Match the following [Given : Assume vibrat... | Chemistry | TestHub
- The enthalpies of neutralization of a weak... | Chemistry | TestHub
- When 100 ml of 1 \mathrm{M} \mathrm{H}_{3}... | Chemistry | TestHub
- The enthalpies of neutralization of a weak... | Chemistry | TestHub
- GivenH⁺ (aq.) + OH⁻ (aq) H₂O(ℓ) + 57 KJ HA... | Chemistry | TestHub
- The enthalpy of neutralization of monobasi... | Chemistry | TestHub
- (strong acid) is neutralized with in a con... | Chemistry | TestHub
- The enthalpy of neutralisation of HF with... | Chemistry | TestHub
- The enthalpy of neutralization of a monoba... | Chemistry | TestHub
- The enthalpy of neutralization of a strong... | Chemistry | TestHub
- A volume of 100 ml of 0.5 N-H2SO4 solution... | Chemistry | TestHub
- The heat of neutralisation between a weak... | Chemistry | TestHub
- In a constant pressure calorimeter 224 ml... | Chemistry | TestHub
- The enthalpies of neutralization of a weak... | Chemistry | TestHub
- Among the following solutions, which two s... | Chemistry | TestHub
- 1 L each of 1 M HCl and 1 M NaOH are mixed... | Chemistry | TestHub
- A volume of 100 ml of 0.5 N-HNO3 solution... | Chemistry | TestHub
- Statement 1: If 10 ml of an acid solution... | Chemistry | TestHub
- The enthalpy of neutralization of a strong... | Chemistry | TestHub
- The heat of neutralization of oxalic acid... | Chemistry | TestHub
- Two solutions, initially at 25°C, were mix... | Chemistry | TestHub
- Statement 1: If 5 ml of an acid solution i... | Chemistry | TestHub
- The enthalpies of neutralization of a weak... | Chemistry | TestHub
- 0.2 \mathrm{M} ; 100 \mathrm{ml} \mathrm{N... | Chemistry | TestHub
- The enthalpy of neutralization of a strong... | Chemistry | TestHub
- A solution of 200 ml of 1 M KOH is added t... | Chemistry | TestHub
- Column I contains some chemical reactions... | Chemistry | TestHub
- A solution of 500 ml of 0.2 M KOH and 500... | Chemistry | TestHub
- Statement 1: Heat evolved in the neutraliz... | Chemistry | TestHub
- The enthalpy of neutralization of a strong... | Chemistry | TestHub
- H^{+}+OH^{-}\rightarrow H_2O;\Delta H^{o}=... | Chemistry | TestHub
Enthalpy of Reaction(269)
- Given that . The heat of formation of is | Chemistry | TestHub
- The heat of neutralization of a strong bas... | Chemistry | TestHub
- Heat of combustion for and are and , then,... | Chemistry | TestHub
- Assertion : The increase in internal energ... | Chemistry | TestHub
- For which one of the following equations i... | Chemistry | TestHub
- Assertion : and are almost the same for th... | Chemistry | TestHub
- For the reaction at constant temperature,... | Chemistry | TestHub
- The potential energy diagram for a reactio... | Chemistry | TestHub
- If at the bond energies of and bonds are r... | Chemistry | TestHub
- One gram sample of is decomposed in a bomb... | Chemistry | TestHub
- How much energy is released when 6 moles o... | Chemistry | TestHub
- The enthalpies of combustion of carbon and... | Chemistry | TestHub
- If the bond energies of , and are 433,192... | Chemistry | TestHub
- If the bond dissociation energies of and (... | Chemistry | TestHub
- of methanol is given by the chemical equation | Chemistry | TestHub
- For the reaction of one mole of zinc dust... | Chemistry | TestHub
- The absolute enthalpy of neutralisation of... | Chemistry | TestHub
- The standard enthalpy of formation at for... | Chemistry | TestHub
- The enthalpy changes for the following pro... | Chemistry | TestHub
- The enthalpy of hydrogenation of cyclohexe... | Chemistry | TestHub
- Given: ; The heat of formation of acetylen... | Chemistry | TestHub
- Consider the following reactions: (i) (ii)... | Chemistry | TestHub
- Given that bond energies of and are and re... | Chemistry | TestHub
- Enthalpy is equal to | Chemistry | TestHub
- of a substance is ' ' and is ' ', then wil... | Chemistry | TestHub
- Bond dissociation enthalpy of and are 434,... | Chemistry | TestHub
- Oxidising power of chlorine in aqueous sol... | Chemistry | TestHub
- Given that , express the bond energy in . | Chemistry | TestHub
- From the following bond energies : bond en... | Chemistry | TestHub
- Assertion : A reaction which is spontaneou... | Chemistry | TestHub
- From the following bond energies : bond en... | Chemistry | TestHub
- Assertion : Heat of neutralisation of nitr... | Chemistry | TestHub
- Calculate for the reaction, given the foll... | Chemistry | TestHub
- At and 1 bar which of the following has a... | Chemistry | TestHub
- On the basis of the following thermochemic... | Chemistry | TestHub
- Assertion : Bond energy and bond dissociat... | Chemistry | TestHub
- The species which by definition has zero s... | Chemistry | TestHub
- and have the same crystal structure and ap... | Chemistry | TestHub
- The following two reactions are known The... | Chemistry | TestHub
- Enthalpy of a compound is equal to its | Chemistry | TestHub
- The standard enthalpy of formation of is .... | Chemistry | TestHub
- For the reaction, at constant temperature, is | Chemistry | TestHub
- If the enthalpy change for the transition... | Chemistry | TestHub
- Heat of formation, of an explosive compoun... | Chemistry | TestHub
- The enthalpy of formation of and is and re... | Chemistry | TestHub
- Consider the following processes For will... | Chemistry | TestHub
- Standard enthalpy of vaporisation for wate... | Chemistry | TestHub
- Consider the following processes For will be | Chemistry | TestHub
- Bond dissociation energy of is and is . Th... | Chemistry | TestHub
- The enthalpy of neutralisation of with is... | Chemistry | TestHub
- What is the value of electron gain enthalp... | Chemistry | TestHub
- Using the data provided, calculate the mul... | Chemistry | TestHub
- Given that: (i) of is (ii) Bond energies o... | Chemistry | TestHub
- The standard enthalpies of formation ofand... | Chemistry | TestHub
- Given Reaction Energy Change Based on data... | Chemistry | TestHub
- Three thermochemical equation are given be... | Chemistry | TestHub
- In which of the following exothermic react... | Chemistry | TestHub
- The enthalpy of combustion of 2 moles of b... | Chemistry | TestHub
- The reaction is an exothermic reaction. Ac... | Chemistry | TestHub
- For the dissociation reaction, heat of ato... | Chemistry | TestHub
- Energy of activation of forward reaction f... | Chemistry | TestHub
- Assertion : Bond dissociation energy is Re... | Chemistry | TestHub
- When 5 litres of a gas mixture of methane... | Chemistry | TestHub
- Given: The molar enthalpy of vapourisation... | Chemistry | TestHub
- For complete combustion of ethanol,,the am... | Chemistry | TestHub
- The standard enthalpy of formation for met... | Chemistry | TestHub
- The enthalpy of sublimation of aluminium i... | Chemistry | TestHub
- The standard molar heat of formation of et... | Chemistry | TestHub
- The standard enthalpy of formation ofis. I... | Chemistry | TestHub
- The heats of neutralisation of , and are -... | Chemistry | TestHub
- The heat of atomization of methane and eth... | Chemistry | TestHub
- For the reaction of one mole of zinc dust... | Chemistry | TestHub
- The heat of combustion of carbon tois. The... | Chemistry | TestHub
- The heat liberated when of benzoic acid is... | Chemistry | TestHub
- Assertion : Heat of neutralisation for bot... | Chemistry | TestHub
- Given (Electron gain enthalpy) Based on da... | Chemistry | TestHub
- Assertion : A reaction which is spontaneou... | Chemistry | TestHub
- Consider the following liquid - vapour equ... | Chemistry | TestHub
- The heats of combustion of carbon and carb... | Chemistry | TestHub
- A certain reaction is non spontaneous at .... | Chemistry | TestHub
- Given:Based on the above thermochemical eq... | Chemistry | TestHub
- The enthalpy change on freezing ofof water... | Chemistry | TestHub
- Consider the reaction : carried out at con... | Chemistry | TestHub
- The combustion of benzenegivesandGiven tha... | Chemistry | TestHub
- Enthalpy of combustion of methane and etha... | Chemistry | TestHub
- Calculate enthalpy change for the change ,... | Chemistry | TestHub
- The bond dissociation energies ofandare in... | Chemistry | TestHub
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- Given(A) (B) The for the reaction is | Chemistry | TestHub
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- Practice Question | Chemistry | TestHub
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- The formation enthalpies, for and are 220.... | Chemistry | TestHub
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- Ethanol can undergo decomposition to form... | Chemistry | TestHub
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- What is the flow of CO and H2 at valve-1? | Chemistry | TestHub
- Match the following: | Chemistry | TestHub
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- ΔG° for the reaction is | Chemistry | TestHub
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- Calculate the magnitude of ring strain ene... | Chemistry | TestHub
- Match the column: | Chemistry | TestHub
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- If at initial temperature T1, H1 is the en... | Chemistry | TestHub
- Match the followingColumn IColumn IIP) 2H2... | Chemistry | TestHub
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- 200 mL of 0.2 M NaOH solution is prepared,... | Chemistry | TestHub
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- A solution of 4.0 g of an oxygen-carrying... | Chemistry | TestHub
- The reaction is | Chemistry | TestHub
- Match the columnColumn IColumn IIP) H2(g)... | Chemistry | TestHub
- 2MnO4- + 16H+ + 10Cl- → 2Mn2+ + 5Cl2(g) +... | Chemistry | TestHub
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- 2H2O2(aq) → 2H2O(l) + O2(g)The above decom... | Chemistry | TestHub
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- ΔG° for the reaction is | Chemistry | TestHub
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- Ethanol can undergo decomposition to form... | Chemistry | TestHub
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- In an ice calorimeter, a chemical reaction... | Chemistry | TestHub
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Enthalpy of solution/dilution/hydration(44)
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- When 0.49 g NH4Br was dissolved in 20 g of... | Chemistry | TestHub
- Statement 1: When anhydrous CuSO4 is stirr... | Chemistry | TestHub
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- Statement 1: Gases dissolve in water with... | Chemistry | TestHub
- Solution II: 1 mole of H2SO4 dissolved in... | Chemistry | TestHub
- As a 0.1 mole sample of solid NH4Cl was di... | Chemistry | TestHub
- As a 0.2 mole sample of solid KNO3 was dis... | Chemistry | TestHub
- Statement 1: The solubility of any gas in... | Chemistry | TestHub
- A sample of 8.0 g of NH4NO3 (molar mass 80... | Chemistry | TestHub
- When 0.535 g NH4Cl was dissolved in 25 g o... | Chemistry | TestHub
- Statement 1: If a salt dissolves spontaneo... | Chemistry | TestHub
- Calculate the heat effect produced when a... | Chemistry | TestHub
- The enthalpy change when x g of phenol dis... | Chemistry | TestHub
- Statement 1: For all the salts completely... | Chemistry | TestHub
- A solution was prepared by dissolving 7.45... | Chemistry | TestHub
- The correct order of the following is/arei... | Chemistry | TestHub
- Solution IV: Solution I + 5 moles of water... | Chemistry | TestHub
- The molar heat of solution of NH4Br in liq... | Chemistry | TestHub
- Match each reaction in Column I with the n... | Chemistry | TestHub
- Calculate the heat effect produced when a... | Chemistry | TestHub
- Solution III: 1 mole of CaCl2 dissolved in... | Chemistry | TestHub
- Statement 1: When a salt is dissolved in w... | Chemistry | TestHub
- A piston exerting a pressure of 1 bar rest... | Chemistry | TestHub
- Study the following thermodynamic data for... | Chemistry | TestHub
- One mole of soda ash dissolves in water wi... | Chemistry | TestHub
- Study the following thermodynamic data giv... | Chemistry | TestHub
- The molar heat of solution of NH4Cl in liq... | Chemistry | TestHub
- Statement 1: The magnitude of the lattice... | Chemistry | TestHub
- The reversible reaction:Na2SO4 · 10H2O → N... | Chemistry | TestHub
- Solution V: solution II + large excess of... | Chemistry | TestHub
- The enthalpy change when x g of naphthalen... | Chemistry | TestHub
- Solution IV: Solution I + 9 moles of water... | Chemistry | TestHub
- Assertion : Enthalpy changes are positive... | Chemistry | TestHub
- The reversible reaction:Na2SO4 · 10H2O → N... | Chemistry | TestHub
- Solution I: 1 mole of H2SO4 dissolved in 5... | Chemistry | TestHub
- Solution I: 1 mole of CaCl2 dissolved in 6... | Chemistry | TestHub
- Solution III: 1 mole of H2SO4 dissolved in... | Chemistry | TestHub
- Statement 1: Enthalpy changes are positive... | Chemistry | TestHub
- Solution II: 1 mole of CaCl2 dissolved in... | Chemistry | TestHub
- For a certain compound MX , the lattice en... | Chemistry | TestHub
- List - IList - II(P) \mathrm{MgCl}_{2}(\ma... | Chemistry | TestHub
- The enthalpy of solution of \mathrm{BaCl}_... | Chemistry | TestHub
- Solution V: solution II + large excess of... | Chemistry | TestHub
Hess's Law of Constant Heat Summation(36)
- Match the thermodynamic processes given Co... | Chemistry | TestHub
- Consider the equations:CH3CH(OH)CHClCOOH +... | Chemistry | TestHub
- The heat released when 1 mole of \mathrm{H... | Chemistry | TestHub
- The diagram below shows the enthalpy chang... | Chemistry | TestHub
- Calculate ΔH for the following reaction at... | Chemistry | TestHub
- Calculate the heat of formation of using t... | Chemistry | TestHub
- The enthalpy of ionisation of \mathrm{B}(\... | Chemistry | TestHub
- For the following reaction, C (diamond) +... | Chemistry | TestHub
- The heat of total cracking of hydrocarbons... | Chemistry | TestHub
- A chemist studying nickel compounds consid... | Chemistry | TestHub
- The heat of total cracking of hydrocarbons... | Chemistry | TestHub
- \mathrm{C}_{\text {(diamond) }}+\mathrm{O}... | Chemistry | TestHub
- What should be the \Delta_{\mathrm{f}} \ma... | Chemistry | TestHub
- The enthalpy of dissociation of HCN comput... | Chemistry | TestHub
- Calculate ΔH for the following reaction at... | Chemistry | TestHub
- Calculate the heat of formation of methane... | Chemistry | TestHub
- Ethylene can be obtained from ethane by re... | Chemistry | TestHub
- Consider the equations:HOCH2CHBrCOOH + 2KO... | Chemistry | TestHub
- Some thermochemical details are given as:3... | Chemistry | TestHub
- \mathrm{H}^{+}+\mathrm{OH}^{-} \longrighta... | Chemistry | TestHub
- Reactions involving gold have been of part... | Chemistry | TestHub
- Ammonia can be obtained according to react... | Chemistry | TestHub
- The reaction is given by: Given and . Calc... | Chemistry | TestHub
- Heat of hydrogenation of ethene is x_{1} a... | Chemistry | TestHub
- Some thermochemical details are given as:3... | Chemistry | TestHub
- The density of crystalline sodium chloride... | Chemistry | TestHub
- Calculate the enthalpy change for the give... | Chemistry | TestHub
- The enthalpy of neutralisation of a strong... | Chemistry | TestHub
- Use the shown energy diagram to find ΔH₁.... | Chemistry | TestHub
- Given thatHeat of formation of acetylene i... | Chemistry | TestHub
- The intermediate GeH2 is formed in the the... | Chemistry | TestHub
- The intermediate SiH2 is formed in the the... | Chemistry | TestHub
- The following enthalpy changes are known (... | Chemistry | TestHub
- Using bond energy data, calculate the heat... | Chemistry | TestHub
- Practice Question | Chemistry | TestHub
- The lattice energy of solid NaCl is 772 \m... | Chemistry | TestHub
Miscellaneous/Mixed(14)
- When 100 mL of 1.0 M HCl was mixed with 10... | Chemistry | TestHub
- Match the reactions given in List-I with c... | Chemistry | TestHub
- If heat of formation of \mathrm{PCl}_{3}(\... | Chemistry | TestHub
- Two moles of an ideal gas undergoes the fo... | Chemistry | TestHub
- Calculate the \Delta \mathrm{H}_{\text {va... | Chemistry | TestHub
- Calculate proton affinity of \mathrm{NH}_{... | Chemistry | TestHub
- One mole of magnesium in the vapour state... | Chemistry | TestHub
- A mixture of and Al is used in solid fuel... | Chemistry | TestHub
- One gm sample of \mathrm{NH}_{4} \mathrm{N... | Chemistry | TestHub
- In which of the following case(s), entropy... | Chemistry | TestHub
- The correct option(s) about entropy(s) is(... | Chemistry | TestHub
- One mole of an ideal gas at 900 K , underg... | Chemistry | TestHub
- Total number of enthalpies (out of given e... | Chemistry | TestHub
- Which of the following correct order for t... | Chemistry | TestHub
Miscelleneous Enthalpies(30)
- Enthalpy of transition when amorphous boro... | Chemistry | TestHub
- Match the columnsColumn IColumn IIP) CO(g)... | Chemistry | TestHub
- Butane exists in anti and gauche conformat... | Chemistry | TestHub
- The thermochemical equation for the dissoc... | Chemistry | TestHub
- Match the columnsColumn IColumn IIP) Na(s)... | Chemistry | TestHub
- Match the columnsColumn IColumn IIP) C (gr... | Chemistry | TestHub
- The value of heat of combustion per CH2 un... | Chemistry | TestHub
- In solid NH3, each NH3 molecule has six ot... | Chemistry | TestHub
- In solid NH3, each NH3 molecule has six ot... | Chemistry | TestHub
- The strain energy (in kJ/mol) of cyclobuta... | Chemistry | TestHub
- Calculate \Delta \mathrm{G} (in kcal/mole)... | Chemistry | TestHub
- Calculate the change in enthalpy for he fo... | Chemistry | TestHub
- The specific heats of iodine vapours and s... | Chemistry | TestHub
- Boron exists in different allotropic forms... | Chemistry | TestHub
- The enthalpy of formation of ethane and be... | Chemistry | TestHub
- The molar heat capacities of liquid benzen... | Chemistry | TestHub
- The enthalpy change for the following proc... | Chemistry | TestHub
- Calculate the enthalpy of hydrogenation of... | Chemistry | TestHub
- The strain energy (in kJ/mol) of cycloprop... | Chemistry | TestHub
- Boron exists in different allotropic forms... | Chemistry | TestHub
- At the enthalpy of sublimation of ice is 5... | Chemistry | TestHub
- The most exothermic 'ordinary' chemical re... | Chemistry | TestHub
- For the reaction H2(g) + 1/2O2(g) → H2O(l)... | Chemistry | TestHub
- The thermochemical equation for the dissoc... | Chemistry | TestHub
- The heat of combustion per CH2 unit of cyc... | Chemistry | TestHub
- Match the columnsColumn IColumn IIP) C(dia... | Chemistry | TestHub
- If enthalpy change for hydrogenation of et... | Chemistry | TestHub
- Calculate \Delta \mathrm{S} (in \mathrm{Ca... | Chemistry | TestHub
- The enthalpy change for the following proc... | Chemistry | TestHub
- Butane exists in various conformations in... | Chemistry | TestHub
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