Home
Class 11
CHEMISTRY
Zn((s))+Cu((aq))^(+2) rarr Cu((s))+Zn((a...

`Zn_((s))+Cu_((aq))^(+2) rarr Cu_((s))+Zn_((aq))^(+2)`
given that `Delta_(f)G^(@)` for `Cu_((aq))^(+2)` and `Zn_((aq))^(+2)` as `65 kJ mol^(-1)` and `-147.2 kJ mol^(-1)` respectively. Then the standard Gibb's energy change for the above reaction is

A

266.2 kJ

B

111.2 kJ

C

`-212.2 kJ`

D

`-122.2 kJ`

Text Solution

Verified by Experts

The correct Answer is:
C
`DeltaG=G_(P)-G_(R)`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NARAYNA|Exercise Level -II (C.W)|41 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Level -III|64 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise C.U.Q|122 Videos

  • STRUCTURE OF ATOM

    NARAYNA|Exercise EXERCISE - IV EXEMPLAR PROBLEMS|24 Videos

Similar Questions

Explore conceptually related problems

For the Daniel Cell involving the cell reaction Zn_((s))+Cu_((aq))^(+2)hArrZn_((aq))^(+2)+Cu_((s)) the standard free energies of formation of Zn_((s)),Cu_((s)),Cu_((aq))^(+2) and Zn_((aq))^(+2) are 0, 0, 64.4 KJ/Mole and -154.0 KJ/Mole, respectively. Calculate the standard EMF of the cell

Calculate the Gibbs energy change for the reaction given below: Zn_((s))+Cu_((s))^(2+)toCu_((s))+Zn_((aq.))^(2+) Given that standard Gibbs energy ( G^@ ) for Zn_((aq.))^(2+),Cu_((aq.))^(2+) are -147.2 kJ mol^(-1) and 65.0 kJ mol^(-1) respectively.

Calculate DeltaG^(0) for the following reaction, Zn_((s))+Cu_((aq))^(2+)rarrZn_((aq))^(2+)+Cu_((s)).DeltaG_(f)^(0) of Cu_((aq))^(2+) is +65kJmol^(-1)andDeltaG_(f)^(0) of Zn_((aq))^(2+) is - 147.2 kJ mol^(-1)

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^(-) .

Represent the galvanic cell in which the reaction Zn_((s))+ Cu_((aq))^(2+)rightarrowZn_((aq))^(2+)+Cu_(s) take place .

NARAYNA-THERMODYNAMICS-Level -I (C.W)
  1. Human body requires 2370 k.cal of energy daily. If the heat of combusi...

    Text Solution

    |

  2. Energy required to dissociate 4 gms of H(2)(g) into free atoms is 208 ...

    Text Solution

    |

  3. The enthalpy change when 1.00 g of water freezes at 0^(@)C and 1.00 at...

    Text Solution

    |

  4. Deltax is given by : Deltax= ("hydration energy")+("lattice energy")...

    Text Solution

    |

  5. The bond energy of an O -H bond is 109 K. cal "mole"^(-1). When a mole...

    Text Solution

    |

  6. The heat of atomisation of PH(3) is 228 K cal/mol and that os P(2)H(4)...

    Text Solution

    |

  7. When enthalpy and entropy change for a chemical reaction are -2.5 xx10...

    Text Solution

    |

  8. The enthalpy and entropy change for the reaction, Br(2)(l)+Cl(2)(g)r...

    Text Solution

    |

  9. If Delta H("vap") of pure water at 100^(@)C is 40.627 kJ mol^(-1). The...

    Text Solution

    |

  10. The temperature at which the reaction Ag(2)O(s) rarr 2Ag(s) +1/2 O(2...

    Text Solution

    |

  11. The latent heat of fusion of ice is 5.99 kJ/mol at its melting point. ...

    Text Solution

    |

  12. The entropy change for the conversion of 1 mole of alpha-" tin" (at 13...

    Text Solution

    |

  13. DeltaH (vap) for water is 40.7 kJ mol^(-1). The entropy of vapourisati...

    Text Solution

    |

  14. Following data is known about melting of a compound AB.DeltaH=9.2kJmo...

    Text Solution

    |

  15. Combustion of hydrogen in a fuel cell at 300 K is represented as 2H(2(...

    Text Solution

    |

  16. What will be the value of Delta G^(@). If equilibrium constant for a r...

    Text Solution

    |

  17. Zn((s))+Cu((aq))^(+2) rarr Cu((s))+Zn((aq))^(+2) given that Delta(f)...

    Text Solution

    |

  18. CO((g))+1/2 O(2) (g) rarr CO(2(g)) DeltaH=-67.37 K.cal at 25^(@)C th...

    Text Solution

    |

  19. The standard Gibb's free energy change, DeltaG^(@) is related to equil...

    Text Solution

    |

  20. What is the free energy change, 'DeltaG' When 1.0 mole of water at 100...

    Text Solution

    |