To calculate the ΔH°rxn using bond energies, we’re going to use the following equation:
Balanced Reaction: H2O(g) + Cl 2O(g) → 2HOCl(g)
*always make sure that the given reaction is balanced
Consider the following reaction:
H2O(g) + Cl 2O(g) → 2HOCl(g) K 298 = 0.090
ΔG°f = 97.9 kJ/mol
ΔH°f = 80.3 kJ/mol
S° = 266.1 J/K • mol
b. Use bond energy values from the following table to estimate ΔH° for the reaction.
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