ΔG° for the reaction is — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

ΔH° = ΔE° + ΔngRT. Δng = 2 - 0 = 2. ΔH° = 2.1 kcal + (2 × 2 × 298)/1000 kcal = 2.1 + 1.192 = 3.292 kcal. ΔG° = ΔH° - TΔS° = 3.292 kcal - 298 × 0.02 kcal = 3.292 - 5.96 = -2.668 kcal ≈ -2.7 kcal.