Home
Class 12
CHEMISTRY
For a cell reaction involving two electr...

For a cell reaction involving two electron changes the standard emf of the cell is found to be 0.295V at 25C. The equilibrinm constant of the reaction at `25^@C` will be?

A

`1.0xx10^(-10)`

B

`29.5xx10^(-10)`

C

`10.0`

D

`1.0xx10^(10)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MODEL PAPER 14

    UNITED BOOK HOUSE|Exercise EXERCISE|57 Videos
  • QUESTION PAPER 2015

    UNITED BOOK HOUSE|Exercise EXERCISE|71 Videos

Similar Questions

Explore conceptually related problems

If standard free energy change for a reaction is found to be zero what is its equilibrium constant?

n mol of electrons are involved in a redox reaction occurring in a galvanic cell with a standard EMF of xV. Show that the equilibrium constant of the reaction, K=10^(16.91nx).

For the reaction A+BhArr3C at 25^(@)C , a 3 litre volume reaction vessel contains 1,2 and 4 moles of A,B and C respectively at equilibrium, calculate the equilibrium constant K_(c) of the reaction at 25^(@)C .

Calculate the standard emf of the cell having the standard free energy change of the cell reaction is -64.84 kJ for 2 electrons transfer.

At 25^(@)C , the standard free energy change for a reaction is 5.4 kJ. Calculate the value of equilibrium constant of the reaction at the temperature.

The rate constant of two reactions at 30^(@)C are equal. The temperature coefficient of one the reaction is 2 and that other is 2.5. compare the rate constant of the reactions at 50^(@)C

The standard reduction potential of the reaction, 2H_(2)O+2e rarr H_(2)+2OH^(-) is -0.8277V at 25^(@)C . Find the value of the equilibrium constant of the reaction 2H_(2)Orarr H_(3)O^(+)+OH^(-) at the same temperature.

Two first order reactions proceed at 25^@C , at the same rate. The temperature coefficient of the rate of first reaction is 2 and that of the second reaction is 3.find the ratio of rates of these reactions at 75^@C

The emf of the cell : Cd//CdCl_(2).25H_(2)O //AgCl_((s))Ag is 0.675V. Calculate DeltaG of the cell reaction.

A reaction, A+B to C+D+q is found to have a positive entropy change. The reaction will be-

UNITED BOOK HOUSE-MP_1-EXERCISE
  1. Colligative properties are those properties that depend on the

    Text Solution

    |

  2. When solute associates in a solution, the value of Vant Hoff factor is...

    Text Solution

    |

  3. For a cell reaction involving two electron changes the standard emf of...

    Text Solution

    |

  4. The rate constant of a reaction is 1.8xx10^3 min^(-1). What is the ord...

    Text Solution

    |

  5. On which of following does the rate of a reaction depend?

    Text Solution

    |

  6. The hybridisation of phosphoruse in PCI3 is

    Text Solution

    |

  7. Which of the following contains 0-0 linkage?

    Text Solution

    |

  8. Which of the following is most acidic?

    Text Solution

    |

  9. Which of the following is used to distiguish between CH3CHO and C6H5CH...

    Text Solution

    |

  10. Which of the following is most basic?

    Text Solution

    |

  11. In respect of which base does RNA differ from DNA?

    Text Solution

    |

  12. An ester is hydrolysed by KOH and acidified to get a wite pricipitate....

    Text Solution

    |

  13. As2S3 sol has a negative charge. Which of the following has the maxium...

    Text Solution

    |

  14. Consider the reaction: Cr2O(7)^(2-)+I4H^+ +6e rarr 2Cr^(3+)+7H2O. What...

    Text Solution

    |

  15. Write two differeneces between physisorption and chemisorption.

    Text Solution

    |

  16. Give one reason why a finely divided substance is more effective as an...

    Text Solution

    |

  17. The atomic sizes of "26Fe(27)Co and "28Ni are nearly same. Explain wit...

    Text Solution

    |

  18. Why "30Zn^(2+) salts are white while "29Cu^(2+) salts are blue?

    Text Solution

    |

  19. Give an example of an artifical sweetener whose use is limited to cold...

    Text Solution

    |

  20. A solutioln of CuSO4 is electrolysed for 10 mins wite a current of 1.5...

    Text Solution

    |