I have the following cycle for the combustion of propane:
C3H8(g) + 5O2(g) --------> 3CO2(g) + 4H2O (l)
The following mean bond enthalpies have been given:
E(C-C) = +347; E(C-H)= +413; E(O=O) = +498; E (C=O) = +805; E(O-H) = +464
After calculating the total energy to break the bonds in the reactant molecules and also in the product molecules, I have to calculate an approximate value for the Molar Enthalpy of combustion of Propane. May you help me with this last bit? May you show your calculations and working out?