Home
Class 12
CHEMISTRY
Given that Deltah(f)(H)=218 kJ//mol. Exp...

Given that `Deltah_(f)(H)=218 kJ//mol`. Express the `H-H` bond energy in `K cal//mol`

A

52.15

B

911

C

109

D

5.2153

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • Chemical Thermodynamics and Thermochemistry

    OP TANDON|Exercise Set 2|18 Videos

  • Chemical Thermodynamics and Thermochemistry

    OP TANDON|Exercise Objective Question Level B|56 Videos

  • Chemical Thermodynamics and Thermochemistry

    OP TANDON|Exercise Practice problems|81 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

Consider the following data : Delta_(f)H^(@)(N_(2)H_(4),l)=50kJ//mol,Delta_(f)H^(@)(NH_(3),g)=-46kJ//mol B.E(N-H)=393" kJ//mol and B.E."(H-H)=436kJ//mol Delta_("vap")H(N_(2)H_(4),l)=18kJ//mol The N-N bond energy in N_(2)H_(4) is :

Bond energies of H-H and Cl-Cl are "430 kJ mol"^(-1) and "242 kJ mol"^(-1) respectively. DeltaH_(f) for HCl is "91 kJ mol"^(-1) . What will be the bond energy of H-Cl ?

The bond enthalpies of H-H and CI-CI are 430 and 242 kJ mol^(-1) , respectively. If DeltaH_(f) (HCI) is -91 kJmol^(-1) the bond enthalpy of HCI would be

Calculate DeltaG_(reaction) ("kJ"//"mol") for the given reaction at 300 K A_(2)(g)+B_(2)(g)hArr2Ab(g) and at particle pressure of 10^(-2) bar and 10^(-4) Given : Delta H_(f)^(@) AB =180 kJ//mol," "DeltaH_(f)^(@) A_(2)=60 kJ//mol Delta H_(f)^(@) B_(2) = 29.5 kJ//mol," "DeltaS_(f)^(@) AB=210 J//K-mol Delta S_(f)^(@) A_(2) = 190 kJ//mol," "DeltaS_(f)^(@) B_(2)=205 J//K-mol Use : 2.303 Rxx300=5750 "J"//"mole"

The H-H bond energy is 430KJ mol^(-1) and Cl-Cl bonds is 240KJ mol^(-1) . DeltaH for HCl is -90KJ . The H-Cl bond energy is about.

OP TANDON-Chemical Thermodynamics and Thermochemistry-Objective Question Level-A
  1. Standard entropy of X(2) , Y(2) and XY(3) are 60, 40 and 50JK^(-1)mol...

    Text Solution

    |

  2. The unit of entropy is

    Text Solution

    |

  3. Given that Deltah(f)(H)=218 kJ//mol. Express the H-H bond energy in K ...

    Text Solution

    |

  4. For which reaction from the following, DeltaS will be maximum?

    Text Solution

    |

  5. A particular reaction at 27^(@)C for which DeltaH gt 0 and DeltaS gt 0...

    Text Solution

    |

  6. Althought he dissolution of ammonium chloride in water is an endotherm...

    Text Solution

    |

  7. In general, for exothermic reactions to be spontaneous

    Text Solution

    |

  8. For the reversible process, the value of DeltaS is given by the expres...

    Text Solution

    |

  9. In an electrochemical cell, if E^(@) is the e.m.f. of the cell involvi...

    Text Solution

    |

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

    Text Solution

    |

  11. The value of entropy in the universe is

    Text Solution

    |

  12. Which of the following thermodynamic relation is correct?

    Text Solution

    |

  13. The enthalpy of formation for C(2)H(4)(g), CO(2)(g) and H(2)O(l) at 25...

    Text Solution

    |

  14. Identify the correct statement regarding entropy

    Text Solution

    |

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

    Text Solution

    |

  16. One mole of an ideal gas at 300K is expanded isothermally from an init...

    Text Solution

    |

  17. Latent heat of vaporisation of a liquid at 500K and 1 atm pressure is ...

    Text Solution

    |

  18. The enthalpy change of a reaction does not depend on

    Text Solution

    |

  19. Which plot represents for an exothermic reaction ?

    Text Solution

    |

  20. Given : S((s))+(3)/(2)O(2(g))rarrSO(3(g)+2X Kcal SO(2(s))+(1)/(2)O(2...

    Text Solution

    |