Home
Class 11
CHEMISTRY
Assertion (A) Gases do not liquefy above...

Assertion (A) Gases do not liquefy above their critical temperature, even on applying high pressure.
Reason (R) Above critical temperature, the molecular speed is high and intermolecular attractions cannot hold the molecules together because they escape because of high speed.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true and R is not the correct explanation of A.

C

A is true but R is false.

D

A is false and R is true.

Text Solution

Verified by Experts

The correct Answer is:
A

Reason is the correct explanation for assertion
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER : GASES AND LIQUIDS

    DINESH PUBLICATION|Exercise Multiple Choice Question (Select the correct Answer)|13 Videos
  • STATES OF MATTER : GASES AND LIQUIDS

    DINESH PUBLICATION|Exercise Assignment (Very Short Answer Question)|24 Videos
  • STATES OF MATTER : GASES AND LIQUIDS

    DINESH PUBLICATION|Exercise Practice|40 Videos
  • STATES OF MATTER (SOLID STATE CHEMISTRY)

    DINESH PUBLICATION|Exercise ULTIMATE PREPARATORY PACKAGE|21 Videos
  • STRUCTURE OF ATOM

    DINESH PUBLICATION|Exercise Reason Type Questions|1 Videos

Similar Questions

Explore conceptually related problems

Why are the gases helium and hydrogen not liquefied at room temperature by applying very high pressure ?

Assertion : Lower the cirtical temperature for a gas, more easily can it is liquefied. Reason : Critical temperature is the temperature above which above which a gas cannot liquefied depending upon the pressure.

Assertion: SO_(2) gas is easily liquefied while H_(2) is not. Reason: SO_(2) has low critical temperature while H_(2) has high critical temperature.

Assertion : Viscosity of liquids decreases as the temperature rises. Reason : At high temperature molecules have high kinetic energy and can overcome the intermolecular forces to flow faster.

Real gases approches ideal gas at high temperature and low pressure because A) interatomic separation is large size of the molecule is negligible when compareed to inter atomic separation

Assertion: Gases like N_(2), O_(2) behave as ideal gases at high temperature and low pressure. Reason: Molecular interaction diminihes at high temperature and low pressure.

DINESH PUBLICATION-STATES OF MATTER : GASES AND LIQUIDS-Multiple Choice Question
  1. As the temperature increases, average kinetic energy of molecules incr...

    Text Solution

    |

  2. Gases posses characteristic critical temperature which depends upon th...

    Text Solution

    |

  3. What is SI unit of viscosity coefficient (eta) ?

    Text Solution

    |

  4. Atmospheric pressure recorded in different citie are as follows {:("...

    Text Solution

    |

  5. Which curve in figure represents the curve of ideal gas ?

    Text Solution

    |

  6. Increase in kinetic energy can overcome intermolecular forces of attra...

    Text Solution

    |

  7. How does the surface tension of a liquid vary with increase in tempera...

    Text Solution

    |

  8. With regard to the gaseous state of matter which of the following stat...

    Text Solution

    |

  9. Which of the following figures does not represent 1 mole of dioxygen g...

    Text Solution

    |

  10. Under which of the following conditions applied together, a gas deviat...

    Text Solution

    |

  11. Which of the following changes decrease the vapour pressure of water k...

    Text Solution

    |

  12. Match the graphs between the following variables with their names.

    Text Solution

    |

  13. Match the following gas laws with the equation representing them.

    Text Solution

    |

  14. Match the following graphs of ideal gas with their coordinates.

    Text Solution

    |

  15. Assertion (A) Three states of matter are the result of balance between...

    Text Solution

    |

  16. Assertion :- At constant temperature PV vs V plot for real gas is not ...

    Text Solution

    |

  17. Assertion (A) The temperature at which vapour pressure of a liquid is ...

    Text Solution

    |

  18. Assertion (A) Gases do not liquefy above their critical temperature, e...

    Text Solution

    |

  19. Assertion (A) At critical temperature liquid passes into gaseous state...

    Text Solution

    |

  20. Assertion (A) Liquids tend to have maximum number of molecules at thei...

    Text Solution

    |