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Question

Ag|AgCl|Cl(C2)Cl(C1)|AgCl|Ag for this cell ΔG is negative if:

A
C1=C2
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B
C1>C2
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C
C2>C1
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D
Both (1 ) and (3)
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Solution

The correct option is D C2>C1
Given cell is electrolyte concentration cell
Ecell=RTFln[Ag+]RHS[Ag+]LHS
where [Ag+]=Ksp[Cl]. For spontaneous chemical change conc. of Ag+ of cathodic compartment must be greater than anodic compartment.

Hence option (C) is correct.

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