Home
Class 12
CHEMISTRY
If DeltaH(f)^(@) of Icl(g), Cl(g) and I(...

If `DeltaH_(f)^(@)` of `Icl(g)`, `Cl(g)` and `I(g)` is `17.57`, `121.34` and `106.96 J mol^(-1)` respectively. Then bond dissociation energy of `I-Cl` bond is

A

17.57

B

210.73

C

35.15

D

106.96

Text Solution

Verified by Experts

The correct Answer is:
B
The process will be:
`I(g)+Cl(g)toI-Cl(g)," "DeltaH^(@)=17.57" J "mol^(-1)`
`DeltaH=`Heats of atomisation of I(g) and Cl(g)`-`Bond energy of I-Cl bond
`17.57=121.34+106.96-x`
`x=210.73" J "mol^(-1)`
Promotional Banner

Topper's Solved these Questions

  • Chemical Thermodynamics and Thermochemistry

    OP TANDON|Exercise Miscellaneous Numerical Examples|22 Videos

  • Chemical Thermodynamics and Thermochemistry

    OP TANDON|Exercise Practice problems|81 Videos

  • Chemical Thermodynamics and Thermochemistry

    OP TANDON|Exercise Solved Example|74 Videos

  • CHEMICAL KINETICS

    OP TANDON|Exercise LINKED COMPRESHENSION TYPE QUESTIONS ( SECTION-VI)|4 Videos

  • CLASSIFICATION AND NOMENCLATURE OF ORGANIC COMPOUNDS

    OP TANDON|Exercise INTEGER|2 Videos

Similar Questions

Explore conceptually related problems

If values of Delta_(f)H^(Theta) of ICI(g),CI(g) , and I(g) are, respectively, 17.57,121,34 , and 106.96 J mol^(-1) . The value of I-CI (bond energy) in J mol^(-1) is

H_(2)(g) +(1)/(2)O_(2)(g) rarr H_(2)O(g) DeltaH =- 242 kJ mol^(-1) Bond energy of H_(2) and O_(2) is 436 and 500 kJ mol^(-1) , respectively. What is bond energy of O-H bond?

The bond energies of F_2, Cl_2, Br_2 and I_2 are 155, 244, 193 and 151 kJ mol respectively. The weakest bond will be in

Find Delta_(f)H of HCl (g) if bond energies of H_(2), Cl_(2) and HCl are 104, 58, 103 kcal/mol respectively.

The enthalpy of formation of UF(g) is 22kcal mol^(-1) and that of U(g) is 128kcal mol^(-1) . The bond energy of the F-F bond is 37kcal mol^(-1) . The bond dissociation energy of UF(g) is (are):

OP TANDON-Chemical Thermodynamics and Thermochemistry-Illustrations of Objective Questions
  1. Use the bond energies in the table to estimate DeltaH for this reactio...

    Text Solution

    |

  2. Heat of formation of 2 mol of NH(3)(g) is = -90 kJ, bond energies of H...

    Text Solution

    |

  3. If DeltaH(f)^(@) of Icl(g), Cl(g) and I(g) is 17.57, 121.34 and 106.96...

    Text Solution

    |

  4. Calculate the DeltaH in joules for C("graphite")toC("diamond") fro...

    Text Solution

    |

  5. The enthalpy change for the following process are listed below: (a) ...

    Text Solution

    |

  6. Given that: 2C(s)+O(2)(g)to2CO(2)(g)" "(DeltaH=-787kJ) . . . (i) ...

    Text Solution

    |

  7. The bond energies of H--H , Br--Br and H--Br are 433,, 192 and 364KJmo...

    Text Solution

    |

  8. For liquid enthalpy of fusion is 1.435 kcal mol^(-1) and molar entropy...

    Text Solution

    |

  9. Latent heat of vaporisation of water is 540cal g^(-1) at 100^(@)C calc...

    Text Solution

    |

  10. Enthalpy of fusion of water is 6.01 kJ mol^(-1). The entropy change of...

    Text Solution

    |

  11. For spontaneous process:

    Text Solution

    |

  12. Melting point of a solid is x K and its latent heat of fusion is 600 c...

    Text Solution

    |

  13. The entropy change involved in the conversion of 1 mole of liquid wate...

    Text Solution

    |

  14. The free energy for a reaction having DeltaH=31400 cal, DeltaS=32" cal...

    Text Solution

    |

  15. F(2)C=CF-CF = CF(2) rarr F(2)underset(FC=)underset(|)(C)-underset(CF)u...

    Text Solution

    |

  16. For the equilibrium reaction, the value of Gibbs free energy change is...

    Text Solution

    |

  17. At 0^(@)C ice and water are in equilibrium and DeltaH=6kJ" "mol^(-1) f...

    Text Solution

    |

  18. For a reaction, Ag(2)O(s)hArr2Ag(s)+(1)/(2)O(2)(g) DeltaH,DeltaS a...

    Text Solution

    |

  19. For the homogeneous reactions: xA+yBtolY+mZ DeltaH=-30kJ" "mol^(-1...

    Text Solution

    |

  20. For the reaction CO (g) + (1)/(2) O(2) (g) rarr CO(2) (g) Delta H ...

    Text Solution

    |