The standard e.m.f. of a galvanic cell involving cell reaction with n = 2 is found to be 0.295 V at 25⁰C. The equilibrium constant of the reaction
would be  $\left(\mathrm{F}=96500\mathrm{C}{\mathrm{mol}}^{-1};\mathrm{R}=8.314{\mathrm{JK}}^{-1}{\mathrm{mol}}^{-1}\right)$