Home
Class 12
CHEMISTRY
The sublimation energy of I(2) (solid) i...

The sublimation energy of `I_(2)` (solid) is 57.3 KJ/mole and enthalpy of fusion is 15.5 KJ/mole. The enthalpy of vapourisation of `I_(2)` is

A

41.8 kJ/mol

B

`-41.8kJ//mol`

C

`72.8kJ//mol`

D

`-72.8kcal//mol`

Text Solution

Verified by Experts

The correct Answer is:
A

`DeltaH_("sublimation")=DeltaH_("fusion")+DeltaH_("vaporisation")`
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

Enthalpy of vaporisation of napthalene is 48.5 kJ/mol and enthalpy of fusion of napthalene is 22.5 kJ/mol, then enthalpy of subtlimation of naphthalene will be

From the following data : Enthalpy of formation of CH_(3)CN =87.86 kJ/mol Enthalpy of formation of C_(2)H_(6)=- 83.68 kJ/mol Enthalpy of sublimation of graphite =719.65 kJ/mol enthalpy of dissociation of nitrogen =945.58 kJ/mol Enthalpy of dissociation of H_(2) = 435.14 kJ/mol C-H bond enthalpy =414.22 kJ/mol Calculate the bond enthalpy of (i) C-C , (ii) C equiv N

The lattice enthalpy of solid NaCI is 772 kJ mol^(-1) and enthalpy of solution is 2kJ mol^(-1) . If the hydration enthalpy of Na^(+) &CI^(-) ions are in the ratio of 3: 25, what is the magnitude of enthalpy of hydration (in kJ) of chloride ion ?

The lattice enthalpy of solid NaCl is 772 kJ mol^(-1) and enthalpy of solution is 2 kJmol^(-1) . If the hydration enthaply of Na^(+) & Cl^(-) ions are in the ratio of 3 : 2.5 , what is the enthalpy of hydration of chloride ion ?

OP TANDON-Chemical Thermodynamics and Thermochemistry-Objective Question Level-A
  1. Two moles of an ideal gas is expanded isothermally and reversibly from...

    Text Solution

    |

  2. The enthalpy of vaporisation of a liquid is 30 kJ mol^(-1) and entropy...

    Text Solution

    |

  3. The sublimation energy of I(2) (solid) is 57.3 KJ/mole and enthalpy o...

    Text Solution

    |

  4. DeltaH and DeltaS for a reaction are +30.558 kJ mol^(-1) and 0.066 kJ ...

    Text Solution

    |

  5. What would be the heat released when an aqueous solution containing 0....

    Text Solution

    |

  6. A process in which the system does not exchange heat with the surround...

    Text Solution

    |

  7. The entropy of a crystalline substance a absolute zero on the basis of...

    Text Solution

    |

  8. Which of the following expressions is correct?

    Text Solution

    |

  9. Consider the reaction: N(2) + 3H(2) hArr 2NH(3) carried out at constan...

    Text Solution

    |

  10. The absolute enthalpy of neutralization of the reaction, MgO(s)+2HCl...

    Text Solution

    |

  11. Given the following entropy values (in JK^(-1)"mol"^(-1)) at 298 K atm...

    Text Solution

    |

  12. A mixture of 2 mole CO and 1 mole O(2) in a closed vessel is ignited t...

    Text Solution

    |

  13. Consider the following reaction at 1000^(@)C (A) Zn((s))+(1)/(2)O(2(...

    Text Solution

    |

  14. Which of the following equations does not correctly represent the firs...

    Text Solution

    |

  15. Assuming DeltaH^(@) and S^(@) do not change with temperature. Calculat...

    Text Solution

    |

  16. (Delta H - Delta U) for the formation of carbon monoxide (CO) from its...

    Text Solution

    |

  17. For a phase change: H(2)O(l)hArrH(2)O(s) 0^(@)C, 1 bar

    Text Solution

    |

  18. We can drive any thermodynamically forbidden reaction in the desired d...

    Text Solution

    |

  19. The amount of heat released when 20 ml,0.5 M NaOHis mixed with 100 ml...

    Text Solution

    |

  20. In conversation of lime-stone ti lime, CaCO(3)(s)toCaO(s)+CO(2)(g) 7th...

    Text Solution

    |