MCQ
$Co |\, Co^{+2}\, (C_2)\, | | \,Co^{+2}(C_1) |\, Co$ for this cell, $\Delta G$ is negative if
- A$C_2 > C_1$
- ✓$C_1 > C_2$
- C$C_1 = C_2$
- DUnpredictable
✓
Answer
Correct option: B.
$C_1 > C_2$
b
For $\Delta \mathrm{G}\,-\,\mathrm{ve}$
For $\Delta \mathrm{G}\,-\,\mathrm{ve}$
${E}_{\text {cell }}=+\,\mathrm{ve}$
$\mathrm{E}_{\mathrm{cell}}=\mathrm{E}_{\mathrm{cell}}^{\circ}-\frac{0.0591}{2} \log \frac{\mathrm{C}_{2}}{\mathrm{C}_{1}}$
$\mathrm{C}_{1}>\mathrm{C}_{2}$ then $\mathrm{E}_{\text {cell }}=+\mathrm{ve}$
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