Calculate the value of the equilibrium constant, Kp , for the following reaction at 298.0 Kelvin.

Question

(Use the reaction free energy given below.)
2SO3 = 2SO2 + O2 in the gaseous state
ΔG = 140.0 kJ/mol

Answer 1

I wonder if the delta G you wrote is delta Go? Delta G at equilibrium is zero, then
delta Go = -RTlnK