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On the basis of kinetic theory of gases,...

On the basis of kinetic theory of gases, explain how does a gas exert pressure.

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In random motion , the molecules collide with each other and also with the walls of the container. As the collisions are elastic in nature, there is no loss of energy , but a change in momentum occurs due to the force created.
During each collision , the molecules impart certain momentum to the walls of the container. By hte transfer of momentum , the walls experienced per unit area of the walls of the container the pressure exerted by the gas.
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Knowledge Check

  • According to the kinetic theory of gases,

    A
    the pressure of a gas is proprotional to the rms speed of the molecules .
    B
    the rms speed of the molecules of a gas is proprotional to the absolute temperature.
    C
    the rms speed of the molecules of a gas is proprotional to the square root of the absolute temperature.
    D
    the pressure of a gas is proprotional to the square root of the rms speed of the molecules.

  • Kinetic theory explains the behavior

    A
    of solids and liquid Based on the idea that the gas consists of rapidly vibrating atoms or molecules
    B
    of gases based on the idea that the gas consists of rapidly moving atoms or molecules
    C
    of solids based on the idea that the solid consists of rapidly vibrating atoms or molecules
    D
    of liquid based on the idea that the liquid consist of rapidly moving atoms or molecules

    • Similar Questions

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    It is said that the assumptions of kinetic theory are good for gases having low densities. Suppose a container is evacuated so that only one molecule is left in it. Which of the assumptions of kinetic theory will not be valid for such a situation? Can we assign a temperature to this gas?

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