Apply Hess's Law to the 3 reactions above in order to determine the enthalpy of combustion of glucose 1. glucose + 6 ADP + 6Pi = 2 pyruvate + 6ATP delta H = -95.6 kJ mol 2. pyruvate +3o@ +12ADP + 12 Pi = 3CO2 +3H2O + 12 ATP delta H = -620.7 kJ mol 3. ATP = ADP + Pi delta H = -50.3 kJ mol