Question

Ethanol, the alcohol in alcoholic beverages, undergoes oxidation in air as shown in the chemical equation:

C2H5OH(l) + O2(g) CH3COOH(l) + H2O(l)

Calculate ΔH° for the above reaction in kJ/mol using the following information:

C2H5OH(l) + 1/2 O2(g) CH3CHO(l) + H2O(l) ΔH° = -175 kJ

CH3CHO(l) + 1/2 O2(g) CH3COOH(l) ΔH° = -318 kJ