Question
Using the E° values of A and B, predict which is better for coating the surface of iron $\Big[\text{E}^{\circ}_{\text{Fe}^{2+}/\text{Fe}}=-0.44\text{V}\Big]$ to prevent corrosion and why?
Given: $\Big[\text{E}^{\circ}_{\text{A}^{2+}/\text{A}}=-2.37\text{V, E}^{\circ}_{\text{B}^{2+}/\text{B}}=-0.14\text{V}\Big]$
Given: $\Big[\text{E}^{\circ}_{\text{A}^{2+}/\text{A}}=-2.37\text{V, E}^{\circ}_{\text{B}^{2+}/\text{B}}=-0.14\text{V}\Big]$
