Assuming that the value of ?H and ?S do not change with temperature, and using the following data,
S(s, rhombic), ?H° = 0 kJ mol?¹, S° = +31.88 J mol?¹ K?¹
O?(g), ?H° = 0 kJ mol?¹, S° = +205.0 J mol?¹ K?¹
SO?(g), ?H° = -395.2 kJ mol?¹, S° = +256.2 J mol?¹ K?¹
Calculate the value for the free energy change, ?G° for the reaction,
2 S(s, rhombic) + 3 O?(g) ? 2 SO?(g) at 350 K