The standard free energy (?G0') for the hydrolysis of ATP is -30 kJ/mol. The free energy for the hydrolysis of ATP in the cell (?G) is -50 kJ/mol. Which number is closest to the ratio of [ADP][Pi]/[ATP] found in the cell? R=8.314 J/mol*K T=310K Answer A. 1/25 B. 1/250 C. 1/2500 D. 1/25000