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11th Standard English Medium Physics Subject Kinetic Theory of Gases Creative 1 Mark Questions with Solution Part - II

11th Standard

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Physics

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. On colliding with the walls in a closed container, the ideal gas molecules _______________

    (a)

    transfer momentum to the walls

    (b)

    lose momentum completely

    (c)

    move with smaller speeds

    (d)

    perform Brownian motion.

  2. The speeds of 5 molecules of a gas (in arbitrary units) are as follows: 2, 3, 4, 5, 6 The root mean square speed for these molecule is _________________.

    (a)

    2.91

    (b)

    3.52

    (c)

    4.00

    (d)

    4.24

  3. At absolute zero temperature, the K.E. of the molecules becomes ________

    (a)

    zero

    (b)

    maximum

    (c)

    minimum

    (d)

    none of these

  4. If the rms speed of the molecules of a gas is 1000 ms-1 the average speed of the molecule is ______________.

    (a)

    1000 ms-1

    (b)

    922 ms-1

    (c)

    780 ms-1

    (d)

    849 ms-1

  5. The gas having average molecular speed four times that of SO2 (molecular mass 64) is _______________

    (a)

    He (molecular mass 4)

    (b)

    O2 (molecular mass 32)

    (c)

    H2 (molecular mass 2)

    (d)

    CH4 (molecular mass 16)

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