Question

Given, $\Delta G^{\circ }=-nF{E}^{\circ }$ cell and $\Delta G^{\circ }=-RT\ln k$. The value of $n=2$ will be given by the slope of which line in the figure

• A. OA
• B. OB
• C. OC
• D. OD

Answer 1

Answer: (B)

$-nF{E}_{\text{cell }}^{\circ }=-RT\ln k$ or $E_{\text{cell }}^{\circ }=\frac{RT}{nF}\ln k.$
Plot of $\ln k$ or $E_{\text{cell }}^{\circ }$ will have slope $=\frac{1}{2}\frac{RT}{F}$