The transformation of manganese is as follows: Mn() at 720C Mn() at 1100C Mn() at 1136C Mn() Calculate the heat of this process when Mn is oxidised by pure oxygen to form MnO at 1250C. Given: Mn() + 1 2 O2 MnO H298 = 384900 Jmol1 Mn() Mn() Hf = 2100 Jmol1 Mn() Mn() Hf = 2380 Jmol1 Mn() Mn() Hf = 1840 Jmol1 Cp(Mn) = 21.55 + 15.56 103T JK 1mol1 Cp(Mn) = 34.85 + 2.76 103T JK 1mol1 Cp(Mn) = 45.55 JK 1mol1 Cp(Mn) = 47.28 JK 1mol1 Cp(MnO) = 46.44 + 8.12 103T 3.68 105T 2 JK 1mol1 Cp(Oxygen) = 29.96 + 4.184 103T 1.67 105T 2 JK 1mol1