Home
Class 12
CHEMISTRY
Given: E(Zn^(+2)//Zn)^(@) =- 0.76V E...


Given:
`E_(Zn^(+2)//Zn)^(@) =- 0.76V`
`E_(Cu^(+2)//Cu)^(@) = +0.34V`
`K_(f)[Cu(NH_(3))_(4)]^(2+) = 4 xx 10^(11)`
`(2.303R)/(F) = 2 xx 10^(-4)`
Find emf at cell of `200K` if `E^(@)` values are independent of temperature `[log 2= 0.3]`

A

`1.7V`

B

`1.08V`

C

`1.09V`

D

`1.10V`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    ALLEN|Exercise INTEGER TYPE|18 Videos

  • ELECTROCHEMISTRY

    ALLEN|Exercise Part (II) EXERCISE-01|44 Videos

  • ELECTROCHEMISTRY

    ALLEN|Exercise MISCELLANEOUS SOLVED EXAMPLES|29 Videos

  • CHEMISTRY AT A GLANCE

    ALLEN|Exercise ORGANIC CHEMISTRY|483 Videos

  • HYDROCARBON

    ALLEN|Exercise MCQ|15 Videos

Similar Questions

Explore conceptually related problems

Given: E_(Zn^(+2)//Zn)^(@) =- 0.76V E_(Cu^(+2)//Cu)^(@) = +0.34V K_(f)[Cu(NH_(3))_(4)]^(2+) = 4 xx 10^(11) (2.303R)/(F) = 2 xx 10^(-4) At what concentration of Cu^(+2) emf of the cell will be zero (at 298K) and concentration of Zn^(+2) is remains same:

E_(Cu^(2+)//Cu)^(@)=0.34V E_(Cu^(+)//Cu)^(@)=0.522V E_(Cu^(2+)//Cu^(+))^(@)=

Given that E_(Ni^(2+)//Ni)^(@)=-0.25V, E_(Cu^(2+)//Cu)^(@)=+0.34V , E_(Ag^(+)//Ag)^(@)=+0.80V , E_(Zn^(2+)//Zn^(-))=-0.76V . Which of the following redox processes will not take place in specified direction ?

Given E_(Ag^(o+)|Ag)^(@) = + 0.80V , E_(Co^(2+)|Co)^(@) = -0.28 V, E_(Cu^(2+)|Cu)^(@) = + 0.34V, E_(Zn^(2+)|Zn)^@ = -0.76 V Which metal will corrode fastest?

Given that, E_(Ni^(2+)//Ni)^(@)=-0.25 V, E_(Cu^(2+)//Cu)^(@)=+0.34 V E_(Ag^(+)//Ag)^(@)=+0.80 V, E_(Zn^(2+)//Zn)^(@)=-0.76 V Which of the following redox processes will not take place in specified direction ?

ALLEN-ELECTROCHEMISTRY-COMPREHENSION TYPE
  1. Fuel cells : Fuel cells are galvanic cells in which the chemical energ...

    Text Solution

    |

  2. Fuel cells : Fuel cells are galvanic cells in which the chemical energ...

    Text Solution

    |

  3. Fuel cells : Fuel cells are galvanic cells in which the chemical energ...

    Text Solution

    |

  4. One litre each of a Buffer solution is taken in two beakers connected ...

    Text Solution

    |

  5. One litre each of a Buffer solution is taken in two beakers connected ...

    Text Solution

    |

  6. One litre each of a Buffer solution is taken in two beakers connected ...

    Text Solution

    |

  7. One ecologically important equilibrium is that between carbonate and h...

    Text Solution

    |

  8. One ecologically important equilibrium is that between carbonate and h...

    Text Solution

    |

  9. One ecologically important equilibrium is that between carbonate and h...

    Text Solution

    |

  10. The magnitude ( but not the sign ) of the standard reduction potential...

    Text Solution

    |

  11. The magnitude ( but not the sign ) of the standard reduction potential...

    Text Solution

    |

  12. The magnitude ( but not the sign ) of the standard reduction potential...

    Text Solution

    |

  13. Given: E(Zn^(+2)//Zn)^(@) =- 0.76V E(Cu^(+2)//Cu)^(@) = +0.34V K...

    Text Solution

    |

  14. Given: E(Zn^(+2)//Zn)^(@) =- 0.76V E(Cu^(+2)//Cu)^(@) = +0.34V K...

    Text Solution

    |

  15. Given: E(Zn^(+2)//Zn)^(@) =- 0.76V E(Cu^(+2)//Cu)^(@) = +0.34V K...

    Text Solution

    |

  16. H(2)O(2) can be produced by the Ammonium hydrogen sulphate. Reactions ...

    Text Solution

    |

  17. H(2)O(2) can be produced by the ammonium hydrogen sulphate. Reactions ...

    Text Solution

    |

  18. H(2)O(2) can be produced by the Ammonium hydrogen sulphate. Reactions ...

    Text Solution

    |