The potassium-ion concentration in blood plasma is about 5.0 × 10-3 M, whereas the concentration in muscle-cell fluid is much greater (0.15 M). The plasma and intracellular fluid are separated by the cell membrane, which we assume is permeable only to K+.
(a) What is ΔG for the transfer of 1 mol of from blood plasma to the cellular fluid at body temperature 37 °C?
(b) What is the minimum amount of work that must be used to transfer this K+?