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Zn|Zn^(2+)(c1M)||Zn^(2+)(c2M)|Zn. For th...

`Zn|Zn^(2+)(c_1M)||Zn^(2+)(c_2M)|Zn`. For this cell, `DeltaG` would be negative , if :

A

`c_1=c_2`

B

`c_1 gt c_2`

C

`c_2 gt c_1`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
`DeltaG` is negative , if `E_"cell"` is positive as `DeltaG=-nFE_"cell"`
For the given concentration cell `E_"cell"=-(0.0591)/2 "log"(C_1/C_2)`
If `C_2 > C_1 , E_"cell"` is positive and `DeltaG` is negative .
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