Electrochemistry 2 Question 28
«««< HEAD
27. For the above cell
======= ####27. For the above cell
3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed (a) $E_{\text {cell }}<0 ; \Delta G>0$
(c) $E_{\text {cell }}<0 ; \Delta G^{\circ}>0$
(b) $E_{\text {cell }}>0 ; \Delta G<0$
(d) $E_{\text {cell }}>0 ; \Delta G^{\circ}<0$
Show Answer
Solution:
- $M(s)+M^{+}(a q, 1 \mathrm{M}) \longrightarrow M^{+}(a q, 0.05 \mathrm{M})+M(s)$
$$ E_{\text {cell }}=0-\frac{2.303 R T}{F} \log \frac{0.05}{1}>0 $$
Hence, $\left|E_{\text {cell }}\right|=E_{\text {cell }}=0.70 \mathrm{~V}$ and $\Delta G<0$ for spontaneity of reaction.
