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Gaseous State T...

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  • Question 1
    4 / -1

    A cylinder of capacity 20 litres is filled with H2 gas. The total average kinetic energy of translatory motion of its molecules is 1.5×105J. The pressure of hydrogen in the cylinder is:

  • Question 2
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    A gas at a certain volume and temperature has pressure 75 cm. If the mass of the gas is doubled at the same volume and temperature, its new pressure is:

  • Question 3
    4 / -1

    If 20 cm3 gas at 1 atm. is expanded to 50 cm3 at constant T, then what is the final pressure:

  • Question 4
    4 / -1

    400 cm3 of oxygen a 27°C were cooled to –3°C without change in pressure. The contraction in volume will be:

  • Question 5
    4 / -1

    How many moles of He gas occupy 22.4 litres at 30°C and one atmospheric pressure?

  • Question 6
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    16 g of oxygen and 3 g of hydrogen are mixed and kept at 760 mm pressure and 0°C. The total volume occupied by the mixture will be nearly:

  • Question 7
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    At room temperature, the rms speed of the molecules of certain diatomic gas is found to be 1930 m/s. The gas is:

  • Question 8
    4 / -1

    Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will:

  • Question 9
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    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 molecules is:

  • Question 10
    4 / -1

    The molecules of a given mass of a gas have a rms velocity of 200m/sec at 27°C and 1.0 × 105 N/m2 pressure. When the temperature is 127°C and pressure is 0.5×105 N / m2 , the rms velocity in m/sec will be:

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