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How is standard Gibbs energy of a reacti...

How is standard Gibbs energy of a reaction related to its equilibrium constant?

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If standard e.m.f. of a cell is `E_(cell)` and nF is the amount of charge passed, then standard gibbs energy of the reaction, `Delta_(r)G^(@)=-nFE_(cell)^(@)`
Further, we know `E_(cell)^(@)=(RT)/(nF)" ln "K_(c)`
`Delta_(r)G^(@)=-nFxx(RT)/(nF)" ln "K_(c)=-RT" in "K_(c)=-2*303RT" log "K_(c)`.
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