b) Given the following standard enthalpy changes at 298 K, calculate the standard enthalpy change for the reaction given below. S(s) + O2(g) → SO2 (g) AH = -296.8 kJ mol-1 SO2(g) + 3/2 O2(g) → SO3 (g)AH = -98.9 kJ mol-¹ S(s) + 3/2 O2(g) → SO3 (g) AHr = ?​



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