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Gibb's Energy and Nernst Equation

Sn+Co2+→ Sn2+...

Question

$S n + C o^{2 +} \to S n^{2 +} + C o$ . If $E^{o}$ values are:
$S n$ $^{2 +}$ / $S n$ $= 0.14 V$ and $C o$ $^{2 +}$ / $C o$ $= 0.24 V$ .
The above reaction occurs:

from left to right mostly

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from right to left mostly

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in both the directions equally

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cannot be predicted

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Solution

The correct option is A from left to right mostly
$E_{c e l l}^{\circ} = 0.24 - 0.14 = 0.1$
Since $E^{0}$ is +ve
$∴$ The reaction is spontaneous in the forward direction, i.e. from left to right.
Option A is correct.

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Similar questions

C o^{2 +} + S n \to C o + S n^{2 +}

E_{C o / C o^{2}}^{\circ} = 0.277 v o l t

E_{S n / S n^{2 +}}^{\circ} = 0.136 v o l t

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E

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S n ∣ ∣ {S n}^{2 +} (0.001 M) ∣ ∣ ∣ ∣ H^{+} (0.01 M) ∣ ∣ H_{2} (g) (1 b a r) | P t (s)

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S n^{2 +} + 2 e^{-} \to S n; E^{o} = - 0.14 V

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