Given that the enthalpy of combustion to form carbon dioxide and steam is –2102 kJ mol–1 for propane and –1977 kJ mol–1 for propene, determine the enthalpy change for the oxidation of 1 mol of propane to propene and steam
C3H8(g) + ½ O2(g) -----> C3H6(g) + H2O(g)
using equations or a cycle to support your answer.