Home
Class 11
CHEMISTRY
If the enthalpy of vaporisation of water...

If the enthalpy of vaporisation of water is `186.5 J mol^(-1)`, then entropy of its vaporisation will be

A

`0.5 JK^(-1) mol^(-1)`

B

`1.0 JK^(-1) mol^(-1)`

C

`1.5 JK^(-1) mol^(-1)`

D

`2.0 JK^(-1) mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
`Delta S_("vap") = 186.5//373 = 0.5 JK^(-1) mol^(-1)`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS AND THERMOCHEMISTRY

    ERRORLESS|Exercise NCERT Based Questions (Heat of Reaction)|67 Videos

  • THERMODYNAMICS AND THERMOCHEMISTRY

    ERRORLESS|Exercise NCERT Based Questions (Bond Energy)|15 Videos

  • THERMODYNAMICS AND THERMOCHEMISTRY

    ERRORLESS|Exercise NCERT Based Questions (First Law of Thermodynamics and Hess Law)|55 Videos

  • THE S-BLOCK ELEMENTS

    ERRORLESS|Exercise Assertion & Reason|10 Videos

Similar Questions

Explore conceptually related problems

If the enthalpy of vaporization for water is 198.5KJ mol^(-1) , the entropy of its vaprization will be

Latent heat of vaporisation of water,

Enthalpy of vapourisation for water is 186.5 KJ "mole"^(-1) . The entropy change during vapourisation is ______ KJ "mole"^(-1)

ERRORLESS-THERMODYNAMICS AND THERMOCHEMISTRY-NCERT Based Questions (IInd & IIIrd Law of Thermodynamics and Entropy)
  1. Which of the following is correct for adiabatic expansion ideal gas?

    Text Solution

    |

  2. 9.0 g of H2 O is vaporized at 100^@C and 1 atm pressure. If the latent...

    Text Solution

    |

  3. If the enthalpy of vaporisation of water is 186.5 J mol^(-1), then ent...

    Text Solution

    |

  4. Which of the following statements is true? The entropy of the universe

    Text Solution

    |

  5. Which of the following is correct

    Text Solution

    |

  6. Identify the correct statement regarding entropy

    Text Solution

    |

  7. Entropy change involve in conversation of 1mole of liquid water at 373...

    Text Solution

    |

  8. Entropy will not change for the reaction

    Text Solution

    |

  9. The unit of entropy is

    Text Solution

    |

  10. underset(S^(@)(298K)K^(-1)mol^(-1))(H^(+)(aq))+underset(-10.7)(OH^(-)(...

    Text Solution

    |

  11. Which is the correct expression that relates changes of entropy with t...

    Text Solution

    |

  12. One mole of which of the following has the highest entropy

    Text Solution

    |

  13. Predict the sign of DeltaS^(@) for the following reaction : 2H(2)S (...

    Text Solution

    |

  14. Enthalpy of vapourization of benzene is +35.3 kJ mol^(-1) at its boili...

    Text Solution

    |

  15. Entropy change in a process where 1 litre of liquid He is poured into ...

    Text Solution

    |

  16. The change of entropy (dS) is defined as

    Text Solution

    |

  17. In which of the following entropy decreases

    Text Solution

    |

  18. For conversion C (graphite)rarrC (diamond) the DeltaS is

    Text Solution

    |

  19. If for a given substance, melting point is T(B) and freezing point is ...

    Text Solution

    |

  20. Which of the following would be expected to have the largest antropy p...

    Text Solution

    |