Home
Class 11
PHYSICS
At critical temperature, the surface ten...

At critical temperature, the surface tension of a liquid

A

is zero

B

is infinity

C

is the same as that at any other temperature

D

cannot be determined

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • COMPETITION CARE UNIT

    ICSE|Exercise PROPERTIES OF MATTER (CALORIMETRY, CHANGE OF STATE & KINETIC THEORY OF GASES ) |30 Videos

  • COMPETITION CARE UNIT

    ICSE|Exercise INTERNAL ENERGY |40 Videos

  • COMPETITION CARE UNIT

    ICSE|Exercise PROPERTIES OF MATTER (ELASTICITY ) |22 Videos

  • CIRCULAR MOTION

    ICSE|Exercise MODULE 2 (FROM ROTATIONAL KINETIC ENERGY , WORK ,POWER)|24 Videos

  • DIMENSIONS

    ICSE|Exercise SELECTED PROBLEMS (FROM CONVERSIONS OF ONE SYSTEMS OF UNITS INTO ANOTHER)|9 Videos

Similar Questions

Explore conceptually related problems

Assertion : At critical temperature, surface tension of liquids becomes zero. Reason : At critical temperature, intermolecular forces for liquids and gases become equal. Liquids can expand without restriction.

Assertion : The angle of contact of a lilquid with a solid decreases with increase in temperature. Reason : With increase in temperature, the surface tension of the liquid increases.

Surface tension is

What is the effect of temperature on the surface tension of a liquid ?

If temperature increases, the surface tension of a liquid

With an increase in temperature , surface tension of liquid (except molten copper and cadmium)

Surface tension of a liquid is a molecular phenomenon of liquids involving the force of cohesion among the liquid molecules. It is a scalar quantity and numerically equal to the surface energy. Numerically, it is proved that the potential energy of a liquid is maximum on the surface. Sparingly soluble salts and surface active substances decrease the surface tension of the liquid, however, the fairly soluble solute increase is independent of surface area but if depends on the intermolecular force and the temperature. Surface tension of a liquid is zero at:

On increasing temperature , surface tension of water

Assertion : The impurities always decrease the surface tension of a liquid. Reason : The change in surface tension of the liquid depends upon the degree of contamination of the impurity.

The critical temperature of a substance is

ICSE-COMPETITION CARE UNIT-PROPERTIES OF MATTER (SURFACE TENSION )
  1. The work done to blow a scap bubble of radius. R (surface tension T)

    Text Solution

    |

  2. A drop of oil is placed on the surface of water. Which of the followin...

    Text Solution

    |

  3. At critical temperature, the surface tension of a liquid

    Text Solution

    |

  4. Two spherical soap bubbles of radii r(1) and r(2) in vaccum coalesce u...

    Text Solution

    |

  5. Energy needed in breaking a drop of radius R into n drops of radius r,...

    Text Solution

    |

  6. There is a horizontal film of soap solution. On it a thread is placed ...

    Text Solution

    |

  7. Soap helps in cleaning the clothes because

    Text Solution

    |

  8. When two capillary tubes of different diameters are dipped vertically,...

    Text Solution

    |

  9. Workdone to blow a bubble of volume V is W. The workdone is blowing a ...

    Text Solution

    |

  10. The work done is increasing the size of a soap film from 10 cm xx 6 cm...

    Text Solution

    |

  11. An incompressible fluid flows steadily through a cylinder pipe whic...

    Text Solution

    |

  12. By inserting a capillary tube into a depht l in water, the water rises...

    Text Solution

    |

  13. Water rises to a height 0f 10 cm in a capillary tube, and mercuryfalls...

    Text Solution

    |

  14. A square wire fram of size L is dipped in a liquid. On taking out a me...

    Text Solution

    |

  15. In a surface tension experiment with capillary tube water rises upto 0...

    Text Solution

    |

  16. Two unequal soap bubbles are formed one on each side of a tube closed ...

    Text Solution

    |

  17. The radii of two soap bubbles are r(1) and r(2) (r(2) lt r(1)). They m...

    Text Solution

    |

  18. Two capillary tubes of radii 0.2 cm and 0.4 cm are dipped in the same ...

    Text Solution

    |

  19. The work done to get 'n' smaller equal size spherical drop from a bigg...

    Text Solution

    |

  20. A 10 cm long wire is placed horizontal on the surface of water and is ...

    Text Solution

    |