ΔH for the Reaction IF₅ (G)→ IF₃ (g)+ F₂ (g)

Multiple Choice

ΔH for the reaction IF₅ (g) → IF₃ (g) + F₂ (g)
Is ________ kJ,give the data below.
IF (g) + F₂ (g) → IF₃ (g) ΔH = -390 kJ
IF (g) + 2F₂ (g) → IF₅ (g) ΔH = -745 kJ

A) +355
B) -1135
C) +1135
D) +35
E) -35