Chemistry · Electrochemistry · Free Energy & Chemical Equilibrium
Problem
Consider an electrochemical cell: A(s) | An+ (aq, 2 M) || B2n+ (aq, 1 M) | B(s). The value of ΔH° for the cell reaction is twice that of ΔG° at 300 K. If the emf of the cell is zero, the ΔS° (in J K−1 mol−1) of the cell reaction per mole of B formed at 300 K is ____. (Given: ln(2) = 0.7, R = 8.3 J K−1 mol−1.)