The Free Energy of ATP Hydrolysis Is -31

Multiple Choice

The free energy of ATP hydrolysis is -31.0 kJ/mol. The free energy of glucose phosphorylation by hexokinase is +14.3 kJ/mol. These two reactions are coupled to allow them to proceed spontaneously. What is the overall free energy associated with this coupled reaction?

A) -45.3 kJ/mol
B) -31 kJ/mol
C) -16.7 kJ/mol
D) 16.7 kJ/mol
E) 45.3 kJ/mol