Recall that ΔG˚rxn and K are related to each other:
We can now solve for the equilibrium constant using these given values:
ΔG˚rxn = − 6.075 kJ/mol = − 6075 J/mol
R = 8.314 J/mol • K
T = 298 K
For the reaction I2(g) + Cl2(g) ⇌ 2ICl(g), calculate Kp at 25°C [ΔG°f of ICl(g) = −6.075 kJ/mol].