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Calculate the standard cell potentails o...

Calculate the standard cell potentails of the galvanic cells in which the following reactions take place.
(a) `" " 2Cr(s)+3Cd^(2+) to 2Cr^(3+)(aq)+3Cd(s)`
Given `E_(Cr^(3+)//Cr)^(@)=-0.74" V" , E_(Cd^(2+)//Cd)^(@)=-0.40" V"`
(b) `" " Fe^(2+)(aq)+Ag^(+)(aq) to Fe^(3+)(aq)+Ag(s)`
Gievn `E_(Ag^(+)//Ag)^(@)=0.80" V" ,E_(Fe^(3+)//Fe^(2+))^(@)=0.77 " V"`
Also calculate `DeltaG^(@)` and equilibrium constant for the reaction.

A

`x-z`

B

`x- y`

C

`x+y-z`

D

`x+2y- 3z`

Text Solution

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The correct Answer is:
D
Properties of ionic solid
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