Be sure to answer all parts. Calculate ΔH o for the following reaction in two ways, using the data given below. H2 (g) + I2 (g) → 2HI (g) (a) Using the equation ΔH o rxn = ∑ (BE (reactants)) - ∑ (BE (products)) kJ/mol (b) Using the equation ΔH o rxn = ∑ (nΔH o f (products)) - ∑ (mΔH o f (reactants)) kJ/mol Bond BE kJ/mol Substance ΔH o f kJ/mol H-H 436.4 H2 (g) 0 I-I 151 I2 (g) 61.0 H-I 298.3 HI (g) 25.9
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