Concentration Cells(2) S.J.T.U. Phase Transformation and Applications C41→Cu2++2e 2e-+Cu2*->Cum Cu,-→Cum Cu Cu AG°=0E°=0 Cu2+ Cu2+ Ⅱ RT E=- In dCun Figure 6.6 Schematic diagram of concentration cell. zF C SJTU Thermodynamics of Materials Springl 2006 ©X.J.Jin Lecture 11 Electrochemistry llPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Springl 2006 © X. J. Jin Lecture 11 Electrochemistry II Concentration Cells (2) −+ +→ eCuCuI 2 2 →+ CuCue II − 2+ 2 I → CuCu II =Δ 0 D G = 0 D E I II Cu Cu zF RT E α α −= ln