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For a reaction A(s)+2B^(+) (aq) rarr A^(...

For a reaction `A(s)+2B^(+) (aq) rarr A^(2+) (aq) rarr A^(2+)(aq)+2B, K_(C)` has been found to be `10^(12)`. The `E_("cell")^(@)` is 0.354 V

A

0.354 V

B

0.708 V

C

0.0098 V

D

1.36 V

Text Solution

Verified by Experts

The correct Answer is:
A
We know that `DeltaG^(@)=-2.303 RT log K_(C)`
`=-2.303 RT log 10^(12)=-12xx2.303 RT`
also `DeltaG^(@)=-nFE_("cell")^(@)`
or `E_("cell")^(@)=(2.303 RT)/(nF)xx12=0.059/2xx12, (n=2) =0.354 V`
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