Given that the standard free-energy change of the reaction glucose 1-phosphate → glucose 6-phosphate was calculated to be −7.3 kJ/mol, what would be the standard free-energy change of the reverse reaction?
A. −7.3 kJ/mol
B. 0 kJ/mol
C. 7.3 kJ/mol
D. There is not enough information to determine the standard free-energy change of the reverse reaction.