Home
Class 12
CHEMISTRY
The cell in which the following reaction...

The cell in which the following reaction ocuurs:
`2Fe^(3+)(aq)+2I^(-)(aq)rarr 2Fe^(2+)(aq)+I_(2)(s)` has `E_("cell")^(@)=0.236V` at 298K. Calculate the standard Gibbs free energy of the cell reaction. `(1F = "96500C.mol"^(-1))`

Text Solution

Verified by Experts

Given, `n=2, E_("cell")^(@)=0.236V, F = "96500 C.mol"^(-1)`
`therefore DeltaG^(@)=-nFE_("cell")^(@)=-2xx96500xx0.236`
`=-45.548kJ.mol^(-1)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise SOLVED CBSE SCANNER (ALL INDIA - 2018)|5 Videos
  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise SOLVED NCERT TEXTBOOK PROBLEMS (NCERT INTEXT QUESTIONS)|25 Videos
  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise SOLVED CBSE SCANNER (DELHI - 2017)|4 Videos
  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 8 (Answer the following questions)|10 Videos
  • ENVIRONMENTAL CHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 14(Answer the following questions)|6 Videos

Similar Questions

Explore conceptually related problems

The cell in which the following reaction takes place : 2Fe^(3+)(aq)+2I^(-)(aq)rarr 2Fe^(2+)(aq)+I_(2)(s)" has the cell potential, "E_("cell")^(@)=0.236V at 298K. Calculate the standard Gibbs energy and equilibrium constant.

Calculate the equilibrium constant of the reaction : Cu(s)+2Ag^(+)(aq)rarr Cu^(2+)(aq)+2Ag(s): E_("cell")^(@)=0.46V

Calculate the standard cell potential of the galvanic cell in which the following reaction takes place: Fe%(2+)(aq)+Ag^(+)(aq)rarrFe^(3+)(aq)+Ag(s) Calculate the Delta_(r)G^(@) and equilibrium constant of the reaction also. (E_(Ag^(+)|Ag)^(@)=0.80V, E_(Fe^(3+)|Fe^(2+))^(@)=0.77V)

Calculate the standard cell potentials of the galvanic cells in which the following reactions take place : Fe^(2+)(aq)+Ag^(+)(aq)rarr Fe^(3+)(aq)+Ag(s) Calculate Delta_(r )G^(0) , equilibrium constant of the reactions.

Balance the following redox reactions by ion -electron method: MnO_(4)^(-)(aq)+I^(-)(aq)toMnO_(2)(s)+I_(2)(s) (in basic medium)

Write the expression of K_(c) for the reactions: Au^(+)(aq)+2CN^(-)(aq)hArr[Au(CN)_(2)]^(-)(aq) .

Write the anode and cathode reactions for the given cell reactions. S_(2)O_(8)^(2-)(aq)+2I^(-)(aq)rarr2SO_(4)^(2-)(aq)+I_(2)(s)

Predict if the reaction between the following is feasible : Br_(2)(aq) and Fe^(2+)(aq) .

For the cell, Zn|ZnO_(4)||AgNO_(3)|Ag , the cell reaction is : Zn+2Ag^(+)rarr Zn^(2+)+2Ag. If E_("cell")^(@)=+0.36V , then calculate Delta^(@) for the cell reaction of that cell.

Identify the oxidant and reductant in the following reactions KIO_(3)(aq)+5KI(aq)+6HCI(aq)to3I_(2)(s)+6KCI(aq)+3H_(2)O(l)