Using the following parameters of the potential-current density equation (AFC = 0.08 V, BFC = 0.05 V, jo = 0.001 A/cm2, jp = 0.01 A/cm2 , jlim = 1.0 A/cm2, rFC = 0.2 cm2) for a H2/O2 PEMFC, [H2(g) + (1/2) O2(g) = H2O(l), 25 C]

calculate the cell potential, EFC, at (I) 0 A/cm2 and (II) 0.7 A/cm2 with all species at unit activity. Answer is (I) 1.045 V and (II) 0.504 V, but SHOW WORK