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For the reduction of silver ions with co...

For the reduction of silver ions with copper metal, the standard cell potential was found to be + 0.46 V at 25 `"^@C` . The value of standard Gibb's energy, `Delta"^@C` will be (F = 96500 C `mol^(-1)` )

A

-89.0 KJ

B

-89.0 J

C

-44.5 KJ

D

-98.0 KJ

Text Solution

Verified by Experts

The correct Answer is:
A
The cell reaction can be written as
`Cu+2Ag^(+)toCu^(2+)+2Ag`
We know, `DeltaG^@=-nFE_(cell)^@`
= `-2xx96500xx0.46=-88780` J
`=-88.780 KJ~~-89` KJ
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