Home
Class 12
CHEMISTRY
Calculate standard Gibbs free energy for...

Calculate standard Gibbs free energy for the reaction : `Zn+Cu^(2+)toZn^(2+)+Cu,E_("cell")^(@)=1.10V`

Text Solution

Verified by Experts

`E_("cell")^(@)=1.10V`
For the cell reaction,
`Zn+Cu^(2+)toZn^(2+)+Cu`
n=2
`F=96,500C`
`DeltaD^(@)=-nFE_("cell")^(@)`
`=-2xx96500xx1.10`
`=-2123000J`
`=-212.3kJ`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    MBD -HARYANA BOARD|Exercise LONG ANSWER TYPE QUESTIONS|12 Videos
  • ELECTROCHEMISTRY

    MBD -HARYANA BOARD|Exercise VERY SHORT ANSWER TYPE QUESTIONS|12 Videos
  • CHEMISTRY IN EVERYDAY LIFE

    MBD -HARYANA BOARD|Exercise Long answer type questions|5 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MBD -HARYANA BOARD|Exercise LONG ANSWER TYPE QUESTIONS|3 Videos

Similar Questions

Explore conceptually related problems

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

The standard electrode potential for Deniell cell is 1.1V . Calculate the standart Gibbs energy for the reaction. Zn(s) +Cu^(2+)(aq) hArr Zn^(2+)(aq)+Cu(s)

Calculate the standard free energy change for the reaction : Zn(s)|Zn^(2+)(1 M)||Cu^(2+)(1 M)|Cu(s) Given E_(cell)^(@)=1.10" V " .

Calculate the standard free enegry change for the reaction: Zn + Cu^(2+)(aq) rarr Cu+Zn^(2+) (aq), E^(Theta) = 1.20V

The standard free energy of Cu_((aq))^(+) is 50 kJ mol^(-1) and that of Cu_((aq))^(2+) is 66 kJ. mol^(-1) . Calculate the change in free energy for the reaction, Cu_((aq))^(+)rarrCu_((aq))^(2+)+e^(-) .

The standard electrode potential for Daniel cell is 1.1V . Calculate the standard Gibbs energy of the reaction (In KJ/mol) Zn_((s))+Cu_((aq))^(2+)rarrZn_((aq))^(2+)+Cu_((s))

The standard electrode potential for Daniel cell is 1.1V . Calculate the standard Gibbs energy of the reaction (In KJ/mol) Zn_((s))+Cu_((aq))^(2+)rarrZn_((aq))^(2+)+Cu_((s))

Calculate the standard free energy change in kJ for the reaction Cu^(+) +I^(-) to CuI Given: 'CuI + e to 'Cu+I^(-)" "E^(0)=-0.17V Cu^(+)+e to Cu" "E^(0)=0.53V

MBD -HARYANA BOARD-ELECTROCHEMISTRY-SHORT ANSWER TYPE QUESTIONS
  1. The standard e.m.f. of the cell Zn(s)+Cu^(2+)(aq)toZn^(2+)(aq)+Cu(s)...

    Text Solution

    |

  2. The resistance of a 0-2 N solution of an electrolyte in a conductivity...

    Text Solution

    |

  3. Calculate standard Gibbs free energy for the reaction : Zn+Cu^(2+)toZn...

    Text Solution

    |

  4. What is a primary cell ? Describe the construction and working of dry ...

    Text Solution

    |

  5. While giving labelled diagram of dry cell write reactions taking place...

    Text Solution

    |

  6. How much electricity in terms of Faraday is required to produce (i) ...

    Text Solution

    |

  7. Define molar conductance and secondary cells.

    Text Solution

    |

  8. Define equivalent conductance and primary cells.

    Text Solution

    |

  9. State and explain Kohlrausch's law. How does it help in the calculatio...

    Text Solution

    |

  10. Define the processes of oxidation and reduction with example.

    Text Solution

    |

  11. How an electrochemical cell is represented by cell notation ?

    Text Solution

    |

  12. Explain why blue colour of CuSO(4) solution is discharged when Zn rod ...

    Text Solution

    |

  13. Find the standard Gibbs free energy (DeltaG^(@)) for the given reactio...

    Text Solution

    |

  14. What is a fuel cell ? Give advantages of a fuel cell.

    Text Solution

    |

  15. If a current of 0.5 ampere flows through a metallic wire for 2 hours, ...

    Text Solution

    |

  16. How many coulombs are required to produce 40.5 g of Al from molten Al(...

    Text Solution

    |

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

    Text Solution

    |

  18. What are two functions of Salt bridge in an Electrochemical cell ?

    Text Solution

    |

  19. List the important uses of salt bridge.

    Text Solution

    |

  20. What is sacrificial protection from rusting ? Which metal is generally...

    Text Solution

    |