Home
Class 12
CHEMISTRY
Zn|Zn^(2+)(c(1)) || Zn^(2+)(c(2))|Zn. Fo...

`Zn|Zn^(2+)(c_(1)) || Zn^(2+)(c_(2))|Zn`. For this cell `DeltaG` is negative if `:`

A

`C_(1) = C_(2)`

B

`C_(1) gt C_(2)`

C

`C_(2) gt C_(1)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C

`{:(ZnrarrZn_(C_(1))^(2+)+2e),(Zn_(C_(1))^(2+)+2erarrZn):}/(Zn_(C_(1))^(2+)rarrZn_(C_(1))^(2+))`
Thus `E_("cell") = +ve` only `c_(2) gt c_(1)` bacause
`E_("cell") = (0.059)/(2)"log"([Zn_(C_(2))^(2+)])/([Zn_(C_(1))^(2+)])`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    P BAHADUR|Exercise (A) ELECTROLYSIS|2 Videos
  • ELECTROCHEMISTRY

    P BAHADUR|Exercise (B) ELECTRODE POTENTIAL AND EMF|1 Videos
  • DILUTE SOLUTION AND COLLIGATIVE PROPERTIES

    P BAHADUR|Exercise Exercise 9 Advanced Numerical|12 Videos
  • MOCK TEST PAPER

    P BAHADUR|Exercise Exercise|92 Videos

Similar Questions

Explore conceptually related problems

Zn | Zn^(2+)(C_(1) || Zn^(2+)(C_(2)| Zn . For this cell DeltaG is negative if:

Zn|Zn^(2+)(C_1)||Zn^(2+)(C_2)|Zn . For this cell Delta G is negative if

Zn|Zn^(2+)(c_1M)||Zn^(2+)(c_2M)|Zn . For this cell, DeltaG would be negative , if :

In a concentration cell, Zn|Zn^(2+) (0.1M) || Zn^(2+) (0.15M) | Zn , as the cell discharges:

Consider the following concentration cell : Zn(s)|Zn^(2+)(0.024M)||Zn^(2+)(0.480M)|Zn(s) which of the following statements is // are correct?

If in a galvanic cell, the cell reaction is reversed as Cu(s)|Cu^(2+)(aq)||Zn^(+2)(aq)|Zn the cell potential will be

P BAHADUR-ELECTROCHEMISTRY-Exercise (9) ADVANCED NUMERICAL PROBLEMS
  1. Zn|Zn^(2+)(c(1)) || Zn^(2+)(c(2))|Zn. For this cell DeltaG is negative...

    Text Solution

    |

  2. A current of 0.5 A is passed through acidulated water for 30 minute. C...

    Text Solution

    |

  3. A copper cell containing 5% solution of CuSO(4).5H(2)O and a silver ce...

    Text Solution

    |

  4. Some quantity of electricity being used to liberate iodine (at anode) ...

    Text Solution

    |

  5. A test for complete romovel of Cu^(2+) ions form a solution of Cu((aq....

    Text Solution

    |

  6. A Zn rod weighing 25g was kept in 100 mL of 1M CuSO(4) solution. After...

    Text Solution

    |

  7. Assume that impure copper contains only Fe, Au and Ag as impurities. A...

    Text Solution

    |

  8. 50 mL of 0.1 M CuSO(4) solution is electrolysed using Pt electrodes wi...

    Text Solution

    |

  9. An oxide of metal ("at. wt. "= 112) contain 12.5% O(2) by weight. The ...

    Text Solution

    |

  10. 19g fused SnCl(2) was electrolysed using inert electrodes. 0.119g Sn w...

    Text Solution

    |

  11. A lead storage cell is discharged which causes the H(2)SO(4) electroly...

    Text Solution

    |

  12. Two litre solution of a buffer mixture containing 1.0 M NaH(2)PO(4) an...

    Text Solution

    |

  13. A current of 40 microampere is passed through a solution of AgNO(3) fo...

    Text Solution

    |

  14. Suppose a fully charged battery containes 1.50 litre of 5.0 M H(2)SO(4...

    Text Solution

    |

  15. In an analytical determination of aresenic , a solution containing are...

    Text Solution

    |

  16. Assuming that a constant current is delivered, how many kW-h of electr...

    Text Solution

    |

  17. Find the e.m.f. of the following cell at 18^(@)C taking the degree of ...

    Text Solution

    |

  18. If it is disreed to construct the following voltaic cell to have E(cel...

    Text Solution

    |

  19. The e.m.f. of the obtained by combining Zn and Cu electrodes of Danie...

    Text Solution

    |

  20. Calcualte the potential of an indicator electrode versus the standard ...

    Text Solution

    |

  21. An electrode is prepared by dipping a silver strip into a solution sat...

    Text Solution

    |