Use the special form of Hess’s law and given ∆H°f of the rea…
Use the special form of Hess’s law and given ∆H°f of the reactants and products to calculate the heat for the reaction (∆H°rxn) of methane with oxygen: CH4 (g) + 2 O2(g) CO2(g) + 2 H2O(l) ∆H°f, methane (g) -74.60 kJ/mol ∆H°f, water (l) -285.8 kJ/mol ∆H°f, carbon dioxide (g) -393.5 kJ/mol