hanol, C2H5OH, is being promoted as a clean fuel and is used as an additive in many gasoline mixtures. Calculate the ?H°rxn for the combustion of ethanol.
(?H°f [C2H5OH(l)] = -277.7 kJ/mol; ?H°f [CO2(g)] = -393.5 kJ/mol; ?H°f [H2O(g)] = -241.8 kJ/mol)