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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 (a) and (c)

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Solution

The correct option is B

C1>C2


Given cell is electrolyte concentration cell
Ecell=RTFln[Ag+]cathode[Ag+]anode

Where [Ag+]=Ksp[Cl]
For spontaneous chemical change conc. of Ag+ of cathodic compartment must be greater than anodic compartment.


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