the standard electrode potential for a cell is 2 V at 300 K, the equilibrium constant (K) for the reaction,

Zn(s) + Cu2+ (aq) Zn2+ (aq) + Cu(s)

at 300 K is approximately (R = 8 J K–1 mol–1, F = 96500 C mol–1)

(a) e–80

(b) e 160

(c) e –160

(d) e 320