Home
Class 11
CHEMISTRY
The enthalpy of vaporisation of benzene ...

The enthalpy of vaporisation of benzene is +35.3 `kJ`/`mol` at its boiling point of `80^@C`. The entropy change in the transition of vapour to liquid at its boiling point is .... (in J `mol^-1K^-1`).

A

-100

B

`+100`

C

`+342`

D

-342

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER (GASES & LIQUIDS)

    PATHFINDER|Exercise QUESTION BANK|280 Videos

Similar Questions

Explore conceptually related problems

The enthalpy of vaporization of a certain liquid at its boiling point of 35^@C is 24.64 kJ mol^-1 . The value of change in entropy for the process is

The enthalpy of vaporisation of a certain liquid at its boiling point off 35^(@)C is 24.64kJ*mol^(-1) . The value of change in entropy for the process is-

The enthalpy of vaporisation of benzene at 80^(@)C (boiling point) is 31 kJ*mol^(-1) . What will be the change in entropy of rthe transformation of 31.2g of benzene vapour into liquid benzene at 80^(@)C ?

Latent heat of vaporisation of the water at normal boiling point is 40.75 kJmol^-1 . Calculate the change in entropy of vaporisation.

The enthalpy of solution of BaCl_2(s) and BaCl_2.2H_2O(s) are -20.6 kJ mol^-1 and 8.8kJ mol^-1 . The enthalpy change for the formation of hydrated salt is

If the enthalpy change for the transition of liquid water to steam is 300 kJ mol^-1 at 27^@C , the entropy change for the process would be

The boiling point elevation constant for toluene is 3.32 K kg mol^-1 . The normal boiling point of toluene is 110.7^@C . The enthalpy of evaporation of toluene would be nearly :

The enthalpy of fusion of ice Is 1.435 kcal/mol. The molar entropy change for the melting of ice at 0^@C is

PATHFINDER-THERMODYNAMICS-QUESTION BANK
  1. Enthalpy change for the reaction, 4H(g) overset to 2H2(g) is -869.5 kJ...

    Text Solution

    |

  2. If the enthalpy change for the transition of liquid water to steam is ...

    Text Solution

    |

  3. Based on the first law of thermodynamics, which one of the following i...

    Text Solution

    |

  4. The enthalpy of solution of sodium chloride is 4 kj mol^-1 and its ent...

    Text Solution

    |

  5. Four grams of graphite is burnt in a bomb calorimeter of heat capacity...

    Text Solution

    |

  6. Which reaction, with the following values of DeltaH, DeltaS at 400K is...

    Text Solution

    |

  7. The enthalpy of vaporisation of benzene is +35.3 kJ/mol at its boiling...

    Text Solution

    |

  8. For the reversible reaction, A(s) + B(g) iff C(g) + D(g), DeltaG^@ = -...

    Text Solution

    |

  9. A reaction is spontaneous at low temperature but non spontaneous at hi...

    Text Solution

    |

  10. At the sublimition temperture, for the process CO2(s) iff CO2(g) (1) ...

    Text Solution

    |

  11. Match the thermodynamic processes given under Column I with the expres...

    Text Solution

    |

  12. For the process H2O(i) to H2O(g) at T = 100^@C and 1 atmospere pressur...

    Text Solution

    |

  13. For complete combustion of ethanol, C2H5OH(l), + 3O2(g) to 2CO2(g) + ...

    Text Solution

    |

  14. The standard enthalpies of formation of CO2(g), H2O(l) and glucose (s)...

    Text Solution

    |

  15. A fixed mass m of a gas is subjected to transformation of states from ...

    Text Solution

    |

  16. A fixed mass m of a gas is subjected to transformation of states from ...

    Text Solution

    |

  17. For an ideal gas, consider only p-V work in going from an initial stat...

    Text Solution

    |

  18. Using the data provided calculate the multiple bond energy (KJ mol^(-)...

    Text Solution

    |

  19. The reversible expansion of an ideal gas under adiabatic and isotherma...

    Text Solution

    |

  20. A gas expands from a volume of 1 m^3 to a volume of 2 m^3 against an e...

    Text Solution

    |