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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 foound to be `+0.46 V` at `25^(@) C`. The value of standard Gibbs energy, `DeltaG^(@)` will be `(F = 96,500C mol^(-1))`:

A

`-89" kJ"`

B

`-89.0" J"`

C

`-44" kJ"`

D

`-98.0" kJ"`

Text Solution

Verified by Experts

The correct Answer is:
A
(a) The cell reaction is :
`Cu(s)+2Ag^(+)(aq) to Cu^(2+)(aq)+2Ag(s)`
`DeltaG^(@)=-nFE_(cell)^(@)=(-2)(96500 C)(0.46 V)`
`=-88780" C V"=-88760" J"`
`=-88.76" kJ"~~-89.0" kJ"`
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