In E. coli, oxidation-reduction reactions (or ATP hydrolysis) within the cell membrane generates a ?pH of 1.3 (interior higher by 13 unit) and a ?V of -121 mV (interior negative). Along with H+ ins, beta galactosides are cotransported in response to the total "proton motive force? How much energy (in kcal/mol) is made available by the above ?pH and ?V? Be sure to include the sign of G in your answer. The temperature is 37 °C, F = 23.1 kcal/V mol