(1) G=G0+RT in (fproductsifireactants) All cells discovered to date thermodynamically couple the hydrolysis of ATP to numerous cellular processes in order to power those cellular processes. The hydrolysis of ATP under intracellular conditions has been measured to be approximately - 55kJ mot- G=55kJmot1 (2) ATP+H2OADP+Pi+H+ Thus, under intracellular conditions, the cell will require approximately 55kJ of energy per mole of AIP whien it needs to make ATP. G=55kJmot1