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A liquid drop of diameter D breaks up in...

A liquid drop of diameter D breaks up into 27 tiny drops . Find the resulting change in energy .

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Knowledge Check

  • A liquid drops of radius R breaks up into 64 small drops of equal size. If the surface tension of the liquid, the work done is,

    A
    `5piR^2T`
    B
    `7piR^2T`
    C
    `12piR^2T`
    D
    none of these

  • The surface energy of a liquid drop is 20J. It is sprayed into 1000 identical drops. The total surface energy will be

    A
    1000 J
    B
    200 J
    C
    180 J
    D
    90 J

  • A drops of mercury, 2mm in a diameter is broken up into 1000 droplets, all of the same size. Calculate the work done in the prosses, if surface tension of mercury is 460 xx 10^-3 N/m .

    A
    `6.9 xx 10^-6 J`
    B
    `5.2 xx 10^-5 J`
    C
    `6.12 xx 10^-5 J`
    D
    `5.5 xx 10^-4 J`

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    Two small drops of mercury each of radius R coalesce to form a single drop. Find the ratio of the total surface energies before and after the change.

    Why liquid drops in contact coalesce and form a single drop?

    A volume of dry air at 27^@C is compressed (b) suddenly to one third of its volume.Find the resulting temperature in each., case, taking y = 1.4 for air.

    Sixty four identical drops of mercury comes together to form a single drop of radius 0.8mm. Find the energy released if surface tension of mercury is 540 dyne/cm.

    A drop of mercury, 2mm in diameter, is broken up into 1000 small spherical droplets all of the same size. The work done in the process is (S.T. of mercury = 460 xx 10^-3 N/m

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