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Liquid Helium is called superfuluid. Why...

Liquid Helium is called superfuluid. Why ?

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Knowledge Check

  • Statement I : He - II has high viscosity and flows downward. Statement II : Liquid helium is used as cryogenic liquid.

    A
    Both 'I' and 'II' are true. 'II' is correct explanation of 'I'.
    B
    Both 'I' and 'II' are ture. 'II' is not correct explanation of 'I'.
    C
    I' is true but 'II' is false.
    D
    I' is false but 'II' is true.

  • Liquid food drinking is called

    A
    pinocytosis
    B
    phagocytosis
    C
    imbibition
    D
    exocytosis

  • When liquid helium is cooled below the -point tem- perature, which of the following abrupt changes is/are observed in the properties?

    A
    Increase in thermal conductivity
    B
    The viscosity becomes zero
    C
    It becomes a superconductor and shows zero elec- trical resistance.
    D
    The liquid can flow up the sides of the vessel.

    • Similar Questions

    Explore conceptually related problems

    Why are liquids and gases categorised as fluids ?

    Why are liquids and gases categorised as fluids ?

    When liquid helium is cooled below the -point tem- perature, which of the following abrupt changes is/are observed in the properties?

    When liquid helium is cooled below the -point tem- perature, which of the following abrupt changes is/are observed in the properties?

    A sample containing 2.000 mol of helium gas originalyy at 298.15 K and 1.000 bar is coled to its normal boilding temperature of 4K, condensed to a liquid and then cooled further to 2K, where it undergoes another phase transition to a second liquid form, called liquid helium II. A beam of laser light suddenly helium II. A beam of laser light suddenly vaporizes this liquid phase, and the helium is brought to a temperature of 298.15K and a pressure of 0.500 bar. the entropy change for the above process is

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