The enthalpy of combustion for octane (C3H18(0)), a key component of gasoline, is –5074 kJ/mol. The reaction equation is: C3H18(1) + 12.502(g) → 8CO2(g) + 9H2O(g). What is the AH+ for this reaction? 16CO2(g) + 18H2O(g) → 2C3H18(1) + 2502(g) kJ ​