Home
Class 12
CHEMISTRY
Consider an electrochemical cell : Mg((s...

Consider an electrochemical cell : `Mg_((s))|Mg^(2+)(aq),1M^(2+) ||Cu^(2+)(aq, 1M)|Cu_((s))` the standard emf of the cell is 2.70 V at 300 K. When the concentration of `Mg^(2+)` is changed to x M, the cell potential changes to 2.67 V at 300 K. The value of x is ________.
(GIven, `(F)/(R) = 11500KV^(-1)`, where F is the Faraday constant and R is the gas constant , In (10= 2.30)

Text Solution

Verified by Experts

The correct Answer is:
`10.00`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|20 Videos
  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise COMPETITION FILE (OBJECTIVE TYPE QUESTIONS)Matching Type Questions|1 Videos
  • D AND F-BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|12 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise COMPETION FILE (Integer Type Numerical Value Type Questions)|5 Videos

Similar Questions

Explore conceptually related problems

For the electrochemical cell, Mg(s)|Mg^(2+) (aq. 1M)||Cu^(2+) (aq. 1M)|Cu(s) the standard emf of the cell is 2.70 V at 300 K. When the concentration of Mg^(2+) is chaged to x M, the cell potential changes to 2.67 V at 300 K. The value of x is ________ . (Given F/R=11500 kV^(-1) . where F is the Faraday constant and R is the gas constant, ln (10) = 2.30)

For the electrochemical cell, Mg(s)|Mg^(2+)(aq,1 M)||Cu^(2+)(aq.1 M) Cu(s) , the standard emf of the cell is 2.70 V at 300 K. When the concentration of Mg^(2+) is changed to x M, the cell potential changes to 2.67 V at 300 K. What is the value of x ? (Given, F/R =11500 K V^(-1) ,where F is the Faraday constant and R is the gas constant, the value of "In"_((10))(10)=2.30) .

Consider an electrochemical cell : A_((s))|A^(n+)((aq,2M)||B^(2n+) ((aq,1M)|B_(s) The value of DeltaH^(@) for the cell reaction is twice that of DeltaG^(@) at 300K . If the emf of the cell is zero, the DeltaS^(@) (in JK^(-1mol^(-1)) of the cell reaction per mole of B formed at 300 K is _________. (Given ln (2)= 0.7, R (universal gas constant ) = 8.3JK^(-1)mol^(-1) . H, S and G are enthalpy , entropy and gibbs energy, respectively).

The following cell Al(s) | Al^(3+(aq, 0.001 M) || Cu^(2+)(aq, 0.10 M)| Cu(s) has a standard cell potential, E^(@) = 200V. What is the cell potential for this cell at the concentration given?

Consider an electrochemical cell : A(s)|A^(n+) (aq. 2M)||B^(2n+) (aq. 1M)|B(s) . The value of DeltaH^(@) for the cell reaction is twice that of DeltaG^(@) at 300 K. If the amf of the cell is zero, the DelatS^(@) ("in "JK^(-1) mol^(-1)) of the cell reaction per mole of B formed at 300 K is ______ . (Given : In (2) = 0.7, R (universal gas constant) = 8.3 J K^(-1) mol^(-1) . H, S and G are enthalpy, entropy and Gibbs energy, respectively.)

E^(@) for the cell Zn(s)|Zn^(2+)(aq)|Cu^(2+)(aq)|Cu(s) is 1.1V at 25^(@)C the equilibrium constant for the cell reaction is about