Home
Class 12
CHEMISTRY
The enthalpy of vaporization of a substa...

The enthalpy of vaporization of a substance is 840 J per mol and its boiling point is `-173^@C`. Calculate its entropy of vaporization.

A

`8.4 "Jmol"^(-1)K^(-1)`

B

`49 "Jmol"^(-1)K^(-1)`

C

`21 "Jmol"^(-1)K^(-1)`

D

`12 "Jmol"^(-1)K^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 95

    NTA MOCK TESTS|Exercise CHEMISTRY|45 Videos

  • NTA NEET SET 97

    NTA MOCK TESTS|Exercise CHEMISTRY|45 Videos

Similar Questions

Explore conceptually related problems

The enthalpy of vaporisation of benzene (C_(6)H_(6)) is 30.8 kJ mol^(-1) at its boiling point (80.1^(@)C) . Calculate the entropy change in going from: a. liquid to vapour and b. vapour to liquid at 80.1^(@)C .

The enthalpy of vaporization of chloroform is 29.4 kJmol^(-1) at its normal boiling point of 61.7^(@) C. What is the entropy of condensation of chlorofom at this temperature?

It the enthalpy of vaporization of benzene is 308/ kJ mol^(-1) at boiling point (80^(@)C) , calculate the entroy (j mol^(-1) K^(-1)) in changing it from liquid to vapor.

Molar enthalpy of vaporization of a liquid is 2.6 kJ. If boiling point of this liquid is 160^(@)c , the molar entropy of vaporization (in JK^(-1) ) unit is

Enthalpy of vapourization of benzene is +35.3 kJ mol^(-1) at its boiling point of 80^(@)C . The entropy change in the transition of the vapour to liquid at its boiling points [in K^(-1) mol^(-1) ] is

NTA MOCK TESTS-NTA NEET SET 96-CHEMISTRY
  1. In the given reaction C6H5-CH=CH-CH3+HCl rarr[X] [X] will be

    Text Solution

    |

  2. The resistance of 0.01 N solution at 25^(@)C is 200 ohm. Cell constant...

    Text Solution

    |

  3. When 0.01 moles of NaOH are added to 1 litre of a buffer solution , it...

    Text Solution

    |

  4. Which of the following compounds on basic hydrolysis will gives formal...

    Text Solution

    |

  5. For a reaction A+2Brarr2C, the following data were obtained . Initial ...

    Text Solution

    |

  6. Which of the following is a true peroxide ?

    Text Solution

    |

  7. Which among the following compounds will show geometrical

    Text Solution

    |

  8. 0.365 g of an orgainc compound containing nitrogen gave 56 ml nitrogen...

    Text Solution

    |

  9. Water soluble salt (x) when heated decomposes into three products A, B...

    Text Solution

    |

  10. The addition of HCl will not supress the ionisation of

    Text Solution

    |

  11. Whipped cream is an example of

    Text Solution

    |

  12. When S in the form of S(8) is heated at 900 K, the initial pressure of...

    Text Solution

    |

  13. 2 moles of FeSO4 in acid medium are oxidized by x moles of KMnO4 , whe...

    Text Solution

    |

  14. Silver cyanide overset(Delta)rarr"Silver"+Aoverset(OH^-)rarrX+Y+H2O I...

    Text Solution

    |

  15. Which of the following amino acid forms sulphide bond in polypeptide

    Text Solution

    |

  16. Which of the following amines forms a yellow oil with NaNO2//conc.HCl ...

    Text Solution

    |

  17. Which of the following outer orbital complex has the highest magnetic ...

    Text Solution

    |

  18. In the given reaction CH3-CH2-C-=Noverset((i)CH3MgCl)rarr[X] [X] will ...

    Text Solution

    |

  19. Which of the following compound does not liberated oxygen gas on warmi...

    Text Solution

    |

  20. The enthalpy of vaporization of a substance is 840 J per mol and its b...

    Text Solution

    |