The standard enthalpy of combustion for propan -1 -ol is - 1994 kj/mol and given by:

CH3CH2CH2OH(l) + 4.5O2 (g) -> 3CO2 (g) + 4H2O (l)

The formation of carbon dioxide and liquid water given by:

C(s) + O2(g) -> CO2(g) delta H = -394kJ/mol

H2 (g) + 0.5 O2 (g) -> H2O (l) delta H = -286 kJ/mol

Determine the standard enthalpy of formation of propan-1 -ol