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Write NERNST equation also Calculate the...

Write NERNST equation also Calculate the cell e.m.f. and `DeltaG` for the cell reaction at `25^(@)C`
`Cr(s)//Cr^(3+)(0.1M)"//"Fe^(2+)(0.01M)//Fe(s)`
Given `E_(Cr^(3+)//Cr)^(0)=-0.75V, E_(Fe^(2+)//Fe)^(0)=-0.45V`

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