$A g | A g^{\oplus} (1 M) | | A g^{\oplus} | | A g$

$0.5 F$ electricity in this LHS (anode) and 1 F of electricity in the RHS (cathode) is first passed making them independent electrolytic cells at 298 K. EMF of the cell after electrolysis will be:

increased

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remain same

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decreased

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None of these

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Solution

The correct option is B remain same
$E = E^{⊖} + \frac{0.0591}{1} l o g \frac{[A g^{\oplus}]_{R}}{[A g^{\oplus}]_{L}}$

$= 0 + 0.0591 l o g 2 = 0.0591 \times 0.301 V$

After current is passed $[A g^{\oplus}]_{r} = 1 M$

$[A g^{\oplus}]_{L} = 0.5 M$

Hence, no change in $E M F$ .

So, the correct option is $B$

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