Discussion - Hess' law calculation Use the enthalpy change of formation of methanol (H2) and your balanced equation to show the production of carbon dioxide and water (H3) in the combustion of methanol to determine a theoretical value for the enthalpy change of combustion (H1) of methanol. H2=H3=H1=(correctto2decimalplaces)(correctto2decimalplaces)(correctto2decimalplaces) Discussion - Comparison of experimental and theoretical value The value determined from the data collected by simple calorimetry is yalue determined by Hess' Law. This shows that not all of the energy when methanol burns in excess oxygen was transferred to the