Calculate the equilibrium constant at 25 C for

Question

CH4 + 2 H2O --> CO2 + 4H2

given:
delta G for CH4 = -50.81
H2O = -228.6
CO2 = -394.4
H2 = 0

Answer 1

First, calculate DGo for the reaction. That is
DGorxn = (n*DGoproducts)-(n*DGoreactants)
Then DGo = -RTlnKp