You need to calculate the enthalpy change (AH) of the reaction A + B → C. How can the enthalpies given for the reaction steps below be combined to
give the overall change in enthalpy?
A+
BD
C+ B→D
ΔΗ,
AH2

This is what i found on google “when one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and atp is converted to adenosine diphosphate (adp). likewise, energy is also released when a phosphate is removed from adp to form adenosine monophosphate (amp).” i hope this you .

About 8 gallons of fuel will be used. (8.08)