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How the reduction potential of an electr...

How the reduction potential of an electrode can be decreased?

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It can be decreased either by decreasing metal ion concentration, `i.e., [M^(n+)]` or by decreasing temperature `T.`
`M^(n+)+n e^(-) rarr M`
`E_(M^(n+)//M)=E_(M^(n+)//M)^(c-)-(RT)/(nF)ln (1)/([M^(n+)])`
`=E_(M^(n+)//M)^(c-)+(RT)/(nF)ln[M^(n+)]`
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