Chemistry - Thermochemistry Question with Solution | TestHub
ChemistryThermochemistryEnthalpy of NeutralisationEasy2 minQB
ChemistryEasysingle choice
The enthalpy of neutralization of a strong acid by a strong base is -57.32 kJ/mol. The enthalpy of formation of water is -285.84 kJ/mol. The enthalpy of formation of aqueous hydroxyl ion is
Options:
Answer:
C
Solution:
H⁺(aq) + OH⁻(aq) → H₂O(l); ΔH = -57.32 kJ. With Δf H(H+, aq) = 0:
Δf H(OH-) = Δf H(H2O) - ΔHneut
Δf H(OH-) = -285.84 - (-57.32) = -228.52 kJ/mol
This corresponds to option (c).
Stream:JEESubject:ChemistryTopic:ThermochemistrySubtopic:Enthalpy of Neutralisation
⏱ 2mℹ️ Source: QB
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