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IfE^(c-).(Fe^(2+)|Fe) is x(1),E^(c-).(Fe...

If`E^(c-)._(Fe^(2+)|Fe)` is `x_(1),E^(c-)._(Fe^(3+)|Fe)` is `x_(2)`, then `E^(C-)._(Fe^(3+)|Fe^(2+))` will be

A

`(-36-0.439)V`

B

`[3(-0.36-0.436)]V`

C

`(-0.36=0.436)V`

D

`[3(-0.36)-2(-0.439)]V`

Text Solution

Verified by Experts

The correct Answer is:
d
`Fe^(3+)+3e^(-)rarr Fe:DeltaG_(1)=-3F E^(c-)._(Fe^(3+)|Fe)`
`Fe^(2+)+2e^(-)rarrFe:DeltaG_(2)=-2F E^(c-)._(Fe^(2+)|Fe`
`Fe^(3+)+e^(-) rarr Fe^(2+):DeltaG_(3)-FE^(c-)._(Fe^(2+)|Fe)`
`E^(c-)._(Fe^(3+)|Fe^(2+))=3E^(c-)._(Fe^(3+)|Fe)-2E^(c-)._(Fe^(2+)|Fe)`
`=3(-0.36)-2(-0.439)V`
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