Butane cap c sub 4 cap h sub 10 g , Δ⁢H_f=−125.7 , combusts in the presence of oxygen to form CO sub 2 times g , Δ⁢H_f=−393.5kJ/mol , and cap h sub 2 cap o g , Δ⁢H_f=−241.82 in the reaction: 2 cap c sub 4 cap h sub 10 g plus 13 cap o sub 2 g rightarrow 8 CO sub 2 g plus 10 cap h sub 2 cap o g What is the enthalpy of combustion, per mole, of butane? Use Δ⁢H_rxn=∑(Δ⁢H_f_1p⁢r⁢o⁢d⁢u⁢c⁢t⁢s)−∑(Δ⁢H_f_1r⁢e⁢a⁢c⁢tan⁡t⁢s)