Home
Class 11
CHEMISTRY
A substance has latent heat of vaporisat...

A substance has latent heat of vaporisation (at its boiling point 300K) =`3kJ//g`. If molar mass of substance is 40, the molar entropy change for condensation process will be:

A

`10J//K`

B

`400J//K`

C

`-400J//K`

D

`-10J//K`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SALT ANALYSIS

    GRB PUBLICATION|Exercise Subjective Type|69 Videos

Similar Questions

Explore conceptually related problems

If Delta H_("vaporisation") of (C_(2)H_(5))O(l) is 350 J//g at it's boiling point 300 K, then molar entropy change for condensation process is

Which substance has the greatest molar entropy at 298K?

If Delta H_("vaporisation") of substance X (l) (molar mass : 30 g//mol ) is 300 J/g at it's boling point 300 K , then molar entropy change for reversible condensation process is

If DeltaH_("vaporisation") of substance X (l) (molar mass :30 g/mol) is 300 J/g at it's boiling piont 300K, then molar entropy change for reversible conddensation process is

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

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

When 3.00 g of a substance 'X' is dissolved in 100 g of "CC"l_4 , it raises the boiling point by 0.60 K. The molar mass of the substance 'X' is ________ g mol^(-1) . (Nearest integer). [Given Kb for "CC"l_4 is 5.0 K kg mol^(-1) ]

M gram of a substance when vapourised occupies of 5.6 litre at NTP. The molar mass (in g/mol) of the substance will be :

GRB PUBLICATION-THERMODYNAMICS-All Questions
  1. Which of the following options correctly represent trure//false nature...

    Text Solution

    |

  2. Which of the following parameters is correct reagarding adsorption of ...

    Text Solution

    |

  3. A substance has latent heat of vaporisation (at its boiling point 300K...

    Text Solution

    |

  4. For a reaction: 2A(g)+4B(g)to 5C(g)+2D(l)DeltaE^(@)=40kca\l//"mole" an...

    Text Solution

    |

  5. A heat engine takes up heat at 100K and liberates heat at 200K. Which ...

    Text Solution

    |

  6. Which of the reaction is expectd to be spontaneous at low temperatures...

    Text Solution

    |

  7. Which of the following statements is incorrect?

    Text Solution

    |

  8. For a substance A, vapour pressure of liquid and solid state at temper...

    Text Solution

    |

  9. Which of the following options correctly reagarding the following stat...

    Text Solution

    |

  10. In which of the following cases, entropy of the system is increasing.

    Text Solution

    |

  11. An ideal gas (gamma=1.4) is used in a carnot cycle as a working substa...

    Text Solution

    |

  12. Caculate DeltaG(kJ//"mole") "for the reaction at 300K" N(2)(g)+O(2)(...

    Text Solution

    |

  13. Identify the option which is correct :

    Text Solution

    |

  14. For a reaction: 2A(g)+B(g)toC(g), DeltaU^(@)=30kcal//"mole" , DeltaS^(...

    Text Solution

    |

  15. What is the free energy for the process H(2)O(l,-10^(@)C, 0.28Pa,1"m...

    Text Solution

    |

  16. Which of the following options represents correct sequence of True (T)...

    Text Solution

    |

  17. A reaction has an equillibrium constant of 0.98 at 300K and 1.2 at 400...

    Text Solution

    |

  18. For a reaction : 3A(g)+B(g)to2C(g)+4D(l) Delta U^(@)=50kcal//"mole" an...

    Text Solution

    |

  19. A substance P has a standard boiling point of 450K. Which of the follo...

    Text Solution

    |

  20. For a reaction A(s)to B(s), DeltaG(300)^(@)=-2kJ//"mole" Where A and...

    Text Solution

    |