Home
Class 12
CHEMISTRY
Given E^@(Cr^(3+)//Cr)^@ = -0.72 V, E(Fe...

Given `E^@_(Cr^(3+)//Cr)^@ = -0.72 V, E_(Fe^(2+)//Fe)^@=-0.42 V`. The potential for the cell `Cr|Cr^(3+) (0.1 M|| Fe^(2+) (0.01 M)|Fe^+` is

A

`-0.26 V`

B

0.26 V

C

0.339 V

D

`-0.339V`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

Given E ^(@)(Cr ^(3+)|Cr)=-0.72V and E ^(@)(Fe ^(2+)|Fe)=-0.42 V. The potential for the cell Cr |Cr ^(3+) (0.1M)||Fe ^(2+) (0.01M) |Fe is

Given E_(Fe^(3+)//Fe)^(@) = -0.36 V, E_(Fe^(2+)//Fe)^(@)= - 0.439V . The value of standard electrode potential for the change , Fe^(3+)+e^(-) rarr Fe^(2+) will be

The e.m.f. of the cell Cr"|"Cr^(3+)+(1M) "||" Cd^(2+)= - 0.47 V, E^(@) Cd "|" Cd^(2+)= - 0.40 V)

Calculate the potential of the following cell at 298 K Zn//Zn^(2+)(a=0.1)//Cu^(2+)(a=0.01)//Cu E_(Zn^(2+)//Zn)^(@)=-0.762V E_(Cu^(2+)//Cu)^(@)=+0.337V Compare the free energy change for this cell with the free enegy of the cell in the standard state.