Using Gf from Appendix D, calculate the equilibrium constant at 298 K for the following reaction:

3CO(g) + 6H2(g) C3H6(g) + 3H2O(l)

Gf for CO(g) = (137.2 kJ/mol)

Gf for H2(g) = (0 kJ/mol)

Gf for C3H6(g) = (74.62 kJ/mol)

Gf for H2O(l) =(-237.1 kJ/mol)