Given ΔG° = -40 kJ/mol and R = 8.314 J/mol·K, calculate the equilibrium constant K at 298 K.

• A. K = 3.0 x 10⁴
• B. K = 5.0 x 10⁵
• C. K = 2.5 x 10³
• D. K = 1.2 x 10⁷

Answer: (D)