Use Hess's Law to Calculate Δ_rG° Using the Following Information

Multiple Choice

Use Hess's law to calculate Δ_rG° using the following information: NO(g) + O(g) → NO₂(g) Δ_rG° = ?
2O₃(g) → 3O₂(g) Δ_rG° = +489.6 kJ mol^-1
O₂(g) → 2O(g) Δ_rG° = +463.4 kJ mol^-1
NO(g) + O₃(g) → NO₂(g) + O₂(g) Δ_rG° = - 199.5 kJ mol^-1

A) +753.5 kJ mol^-1
B) +277.0 kJ mol^-1
C) -676.0 kJ mol^-1
D) -1152.5 kJ mol^-1
E) -225.7 kJ mol^-1