Calculate Δ G° for a reaction with K = 1.5 × 10⁻⁴ at 298 K. (R = 8.314 J/mol·K)
Δ G° = -RT ln K = -8.314 × 298 × ln(1.5 × 10⁻⁴) = -2477.6 × (-8.804) = 21815 J/mol = 21.82 kJ/mol.
Ref: NCERT Class 11 Chemistry > Chapter 5: Thermodynamics > Topic: Heat Capacity and Calorimetry and Measurement of Enthalpy