Home
Class 12
CHEMISTRY
The standard electrode potential of Dani...

The standard electrode potential of Daniell cell is 1.1V. Calculate the standard Gibbs energy for the reaction : `Zn(s)+Cu^(2+)(aq)rarr Zn^(2+)(aq)+Cu(s)`

Text Solution

Verified by Experts

We have, the relation `Delta_(r)G^(@)=-nFE_("cell")^(@)`. For the given reaction.
n = 2, F = `"96487 C.mol"^(-1)" and " E_("cell")^(@)=1.1V`.
Thus, `Delta_(r)G^(@)=-2xx1.1Vxx"96487" C.mol"^(-1)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise SOLVED NCERT TEXTBOOK PROBLEMS (NCERT EXERCISE QUESTIONS)|35 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS|30 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise SOLVED CBSE SCANNER (ALL INDIA - 2018)|5 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 standard electrode potential of Cu^(2+)|Cu half cell is +0.34V . What does it mean?

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

Write the expression of K_(c) for the reactions: 2Ag^(+)(aq)+Cu(s)hArrCu^(2+)(aq)+2Ag(s) .

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

The standard reduction potential of Zn-electrode is -0.76V. The standard oxidation potential of the electrode will be ______________.

Calculte the standard free energy change for the reaction occurring in a Daniell cell (E_("cell")^(@)=1.10V) . Zn(s)+Cu^(2+)(aq)rarrZn^(2+)(aq)+Cu(s)

The positive value of the standard electrode potential of Cu^(2+)|Cu indicates that -

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.

The standard reduction potential of Zn is -0.76V and that of Cu is +0.34V . What do they indicate?

Given : Zn^(2+)(aq)+2e rarr Zn(s), E^(@)=-0.76V and Fe^(2+)(aq)+2e rarr Fe(s), E^(@)=-0.44V . At standard conditions, what cause minimum external potential be required to cause the following reaction : Fe(s)+Zn^(2+)(aq)rarr Fe^(2+)(aq)+Zn(s) ?

CHHAYA PUBLICATION-ELECTROCHEMISTRY-SOLVED NCERT TEXTBOOK PROBLEMS (NCERT INTEXT QUESTIONS)
  1. Represent the cell in which the given reaction occurs : Mg(s)+2Ag^(+...

    Text Solution

    |

  2. Calculate the equilibrium constant of the reaction : Cu(s)+2Ag^(+)(a...

    Text Solution

    |

  3. The standard electrode potential of Daniell cell is 1.1V. Calculate th...

    Text Solution

    |

  4. Calculate the potential of hydrogen electrode in contact with a soluti...

    Text Solution

    |

  5. Calculate EMF of the cell in which the given reaction occurs : Ni(s)...

    Text Solution

    |

  6. The cell in which the following reaction takes place : 2Fe^(3+)(aq)+2I...

    Text Solution

    |

  7. Resistance of a conductivity cell filled with "0.1 mol.L"^(-1)KCl solu...

    Text Solution

    |

  8. The electrical resistance of a column of "0.5 mol.L"^(-1) NaOH solutio...

    Text Solution

    |

  9. The molar conductivity of KCl solution at different concentration at 2...

    Text Solution

    |

  10. Calculate Lambda(m)^(@) for CaCl(2) and MgSO(4) from the data given in...

    Text Solution

    |

  11. Lambda(m)^(@) for NaCl, HCl and NaAc are 126.4, 425.9 and "91 S.cm"^(2...

    Text Solution

    |

  12. The conductivity of "0.001028 mol.L"^(-1) acetic acid is 4.95xx10^(-5)...

    Text Solution

    |

  13. Why does the conductivity of a solution decrease with dilution?

    Text Solution

    |

  14. Suggest a way to determine the Lambda(m)^(@) value of water.

    Text Solution

    |

  15. Molar conductivity of "0.025 mol.L"^(-1) methanoic acid is "46 S.cm"^(...

    Text Solution

    |

  16. A solution of CuSO(4) is electrolysed for 10 minutes with a current of...

    Text Solution

    |

  17. If a current of 0.5A flows through a metallic wire for 2h, then how ma...

    Text Solution

    |

  18. Suggest a list of metlas extracted electrolytically.

    Text Solution

    |

  19. For Cr(2)O(7)^(2-)+14H^(+)+6e rarr 2Cr^(3+)+7H(2)O, what is the quanti...

    Text Solution

    |

  20. Write the chemistry of recharging the lead storage battery highlightin...

    Text Solution

    |