According to the Kinetic Theory of Gases,which of the following statements is correct?

  • A
    Collisions between molecules are inelastic,and the time between two collisions is less than the time taken for the collision.
  • B
    There are attractive forces between the molecules.
  • C
    All molecules of a gas move with the same velocity.
  • D
    The distance traveled between two successive collisions is called the mean free path.

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$A$ $25 \times 10^{-3} \, m^3$ volume cylinder is filled with $1 \, mol$ of $O_2$ gas at room temperature $(300 \, K)$. The molecular diameter of $O_2$ is $0.3 \, nm$ and its root mean square speed is $200 \, m/s$. What is the average collision rate (per second) for an $O_2$ molecule?

What is mean free path? Derive the equation for the mean free path.

An ideal gas $A$ and a real gas $B$ have their volumes increased from $V$ to $2V$ under isothermal conditions. The increase in internal energy
[$AIPMT$ $1993$]

The mean free path of gas molecules depends on $(d =$ molecular diameter$)$

Write the equation for the mean free path of gas molecules.

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