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For the reduction of silver ions with co...

For the reduction of silver ions with copper metals, the standard cell potential was found to be +0.4V at `25^(@)`C. The value of standard Gibb's energy `DeltaG^(@)` will be `(F=96500 C mol^(-1))` :-

A

`-70 KJ`

B

`-77.2 KJ`

C

`-88 KJ`

D

`+90 KJ`

Text Solution

Verified by Experts

The correct Answer is:
B
`2Ag^(+)+cuto2Ag+Cu^(+2)`
`DeltaG_(@)=-nFE_(cell)^(@)`
`=-2xx96500xx0.4`
`=-77.2 KJ`
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