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The E^(c-) for Cu^(2+)//Cu^(o+),Cu^(o+)/...

The `E^(c-)` for `Cu^(2+)//Cu^(o+),Cu^(o+)//Cu,Cu^(2+)//Cu,` are `0.15V,0.50V` and `0.325V`, respectively. The redox cell showing redox reaction `2Cu^(o+) rarr Cu^(2+)+Cu` is made. `E^(c-)` of this cell reaction and `DeltaG^(c-)` may be

A

`E^(c-)=0.175V or E^(c-)=0.350V`

B

`n=1 or 2`

C

`Delta G^(c-)=-33.775k J`

D

All of these

Text Solution

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The correct Answer is:
d
`2Cu^(o+) rarr Cu^(2+)+Cu,`
Cell `I:Cu^(o+) rarr Cu^(2+)+e)`
`Cu^(o+)+e rarr Cu `
`ulbar(2Cu^(o+) rarr Cu^(2+)+Cu)`
`E^(c-)=-0.15+0.50`
`=+0.35V`
`n=1`
Cell `II:Cu rarr Cu^(2+)+2e`
`2Cu^(o+)+2e rarr2Cu`
`ulbar (2Cu^(o+) rarr Cu^(2+)+Cu)`
`E^(c-)=-0.325+0.50`
`=+0.175V`
`n=2`
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