Calculation of a Standard Enthalpy of Combustion

The Standard Enthalpy of Combustion, DH°c, 298, is the heat evolved when 1 mole of a substance burns completely in oxygen, measured under standard conditions of temperature and pressure. For example,
CH3OH(l) + 1½O2(g) ® CO2(g) + 2H2O(l)

Calculate the Standard Enthalpy of Combustion of Methanol, using the following data:
DH°f (CH3OH) = -239 kJ mol-1 DH°f (CO2) = -393 kJ mol-1 DH°f (H2O) = -286 kJ mol-1
Enthapy Cycle Equation Method DH = SHf(prod) - SHf(react) Bond Enthalpies

Ý  select a calculation method  Ý