The standard enthalpy of formation of propene,
C3H6 is
+20.6kJ/mole. Calculate the heat of combustion of one mole of
C3H6. The heats of formation of
CO2(g) and
H2O(l) are
−394kJ/mole and
−285.8kJ/mole[Give your answer in terms of magnitude of the heat of combustion]