Use the ΔH°_f and ΔH°_rxn Information Provided to Calculate ΔH°_f

question 142

Multiple Choice

Use the ΔH°_f and ΔH°_rxn information provided to calculate ΔH°_f for IF: ΔH°_{f (kJ/mol)} IF₇(g) + I₂(g) → IF₅(g) + 2 IF(g) ΔH°_rxn = -89 kJ
IF₇(g) -941
IF₅(g) -840

• A) 101 kJ/mol
• B) -146 kJ/mol
• C) -190. kJ/mol
• D) -95 kJ/mol
• E) 24 kJ/mol

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