Chemistry - Thermochemistry Question with Solution | TestHub

ChemistryThermochemistryEnthalpy of ReactionMedium2 minQB

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Heat evolved in the reaction, $H_{2} + Cl_{2} \to 2 HCl$ is 182 kJ . Bond energies $H - H = 430 kJ / mol$ , $Cl - Cl = 242 kJ / mol$ . Calculate the bond energy of $H - Cl$ .

Options:

Answer:

Solution:

$Δ H = - 182 = 430 + 242 - 2 ϵ_{H Cl}$

$ϵ_{H Cl} = 427 k J m o l^{- 1}$ .

Stream:JEESubject:ChemistryTopic:ThermochemistrySubtopic:Enthalpy of Reaction

⏱ 2mℹ️ Source: QB

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