The electrode potentials for aligned & Cu ²⁺(a q)+e⁻ Cu ⁺(a q) & and Cu ⁺(a q)+e⁻ Cu (s) & are +0.15 ~V and +0.50 ~V respectively. The value & of E_ Cu ²⁺ / Cu ^ will be aligned

Step-by-step solution

aligned & Cu ²⁺+e⁻ Cu ⁺ ; & E₁^ =0.15 ~V ; G₁^ =-n₁ E₁^ F & Cu ⁺+e⁻ Cu ; & E₂^ =0.50 ~V ; G₂^ =-n₂ E₂^ F & Cu ²⁺+2 e⁻ Cu ; E^ =? ; G^ =-n E^ F & G^ = G₁^ + G₂^ & or -2 E^ F=-1 F 0.15+(-1 F 0.50) & or -2 E^ F =-0.15 ~F -0.50 ~F & or -2 F E^ =-F(0.15+0.50) & E^ = 0.65 2 =0.325 ~V aligned