Problem: For the reaction I2(g) + Cl2(g) ⇌ 2ICl(g), calculate  Kp at 25°C [ΔG°f of ICl(g) = −6.075 kJ/mol].

FREE Expert Solution

Recall that ΔG˚rxn and K are related to each other:


ΔG°rxn=-RTlnK


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

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Problem Details

For the reaction I2(g) + Cl2(g) ⇌ 2ICl(g), calculate  Kp at 25°C [ΔG°f of ICl(g) = −6.075 kJ/mol].