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Which of the following does not change d...

Which of the following does not change during compression of a gas at constant pressure-

A

density of a gas

B

distance between molecules

C

average speed of molecules

D

the number of collisions

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • Which of the following expressions does not represent an ideal gas ?

    A
    `p=nRT//V`
    B
    `p=dRT//M`
    C
    `pV=1/3mNu^(-2)`
    D
    `p=2/3N(KT)`

  • The change in pressure and volume of a gas when heat content of the gas remains conatant are called adiabatic changes. The equation is PV^gamma = constant. The changes must be sudden and the exchange of heat with the surroundings. In such changes, dQ= 0. As per first law of thermodynamics, dQ=dU+dW=0. Therefore, dU= -dW Answer the following question based on above passage : A gas in a container is compressed suddenly. Its temperature would

    A
    Increase
    B
    decrease
    C
    stay constant
    D
    change depending upon surrounding temp.
    • CHHAYA PUBLICATION-STATES OF MATTER : GASES AND LIQUIDS-MCQ HOTSPOT
    1. Which of the following does not change during compression of a gas at ...

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    2. For which of the following gaseous mixtures, Dalton's law of partial p...

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    3. Volume of a given mass of an ideal gas is VL at 27^(@)C and 1 atm pres...

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    4. At STP, density of air is 1.3xx10^(-3)g*cm^(-3). Vapour density of air...

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    5. At a given temperature, molar concentration of N(2) is greater than th...

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    6. The density of gas A is d(A) at a temperature of T(A)K, and the densit...

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    7. Two gases A and B have respective van der waals constant (1),b(1) and ...

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    8. The dimension of coefficient of viscosity-

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    9. The densities of water and water vapour are 1.0 g*cm^(-3) and 0.0006g*...

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    10. The most probable velocity of the molecules of gas A (molar mass 16g*m...

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    11. At a given temperature and pressure, the volume of 1 mol of an ideal g...

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    12. Pressure of a gas increases when its temperature is increased at const...

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    13. Under a gives conditions, the rate of diffusion of CH(4) gas is sqrt(2...

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    14. Two flasks are connected by a valve: One of them with volume 5L contai...

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    15. A balloon filled with acetylene is pricked by a pin and dropped readil...

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    16. At STP, the density of a gas is 1.25g*L^(-1). The molar concentrationn...

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    17. There are 100 persons sitting at equal distances in a row XY. Laughing...

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    18. Van der waals constant, b of a gas is 4.42 centrilitre*mol^(-1). How n...

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    19. Which of the following liquids has least surface tension-

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    20. At P atm pressure and TK a sphetical air bubble is rising from the dep...

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