The standard enthalpy of reaction, AH for the reaction, CaO(s) + SO3(3) – CaSO,(s) is 401.5 kJ mol1. Determine the value of AEm for this reaction. -362.2 kJ mol1 399.0 kJ mol1 404.0 kJ mol1 -2880 kJ mol1 +2077 kJ mol 1

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