Calculate the heat of reaction AH for the following reaction: H2(g) + Cl2(9) 2 HCl(9) You...

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Answer 1

Answer #1

$\Delta$ H_rxn = [bond energy of reactants] - [bond energy of products]

$\Delta$ H_rxn = [bond energy of H2 + bond energy of Cl2] - [2 bond energy of HCl]

$\Delta$ H_rxn = [436 + 242] - [ 2 (431)]

$\Delta$ H_rxn = [678] - [862]

$\Delta$ H_rxn = - 184 KJ/mol

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Answer 2

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