37. Calculate AG for the reaction: 2 SO2(g) + O2(g) 2 SO3(9) AGf: SO2 = -300.4 kJ/mol; SO3 = -370.4 kJ/mol 38. Calculate AS for the production of ozone from oxygen. 3 O2(g) 203(9) S = 205 J/(mol-K) for O2(g) and 239 J/(mol-K) for O3(g) at 25 C