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Cu^(2+)+2e^(-)toCu,E^(@)+0.34V Cu^(2+)...

`Cu^(2+)+2e^(-)toCu,E^(@)+0.34V`
`Cu^(2+)+e^(-)toCu^(+),E^(@)=+0.15V`
The equilibrium constant for the reaction `Cu+Cu^(2+)to2Cu^(+)` at `25^(@)C`

A

`2.9xx10^(-8)`

B

`3.72xx10^(-7)`

C

`2.9xx10^(-5)`

D

`3.72xx10^(-5)`

Text Solution

Verified by Experts

The correct Answer is:
B
`CutoCu^(2+)+2e^(-)" "DeltaG_(1)^(0)`
`2Cu^(2+)+2e^(-)to2Cu^(+)" "DeltaG_(2)^(0)`
`DeltaG_(f)^(0)=DeltaG_(1)+DeltaG_(2)`
`DeltaG_(f)^(0)=-2.303RTlogK`
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