Solve this: Given standard electrode potentials : Fe3 + + 3e- → Fe E0 = -0.036V Fe2 + + 2e → Fe E0 = -0.44V The standard electrode potential E0 of Fe3 + + e - → Fe2+ is : (A)-0.476 volt (B) -0.404 volt (C) 0.440 volt (D) 0.772 volt Share with your friends Share 1 Vartika Jain answered this Dear Student, (i) Fe3+ + 3e- → Fe∆G°1=-nFE°1 =-3F×(-0.036) =0.108F(ii) Fe2+ + 2e- → Fe∆G°2=-nFE°2 =-2F×(-0.44) =0.88FWe requireFe3+ + e- → Fe2+This can be obtained by substracting (ii) from (i)∆G°=∆G°1-∆G°2-nFE°=0.108F-0.88F-1×F×E°=-0.772For, E°=0.772 VHence, correct answer is (D) 1 View Full Answer