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Question

Why does gases exert pressure?


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Solution

States of Matter

There are three states in which a matter can be found.

  • Solid
  • Liquid
  • Gas

Gases

  • Gases are having the weakest intermolecular force of attraction and their particles are in continuous random motion and collide with each other and strike the walls of the container.
  • The structure of gas is shown below:
States of Matter - Definition of Solid, Liquid, Gas & Plasma with Videos of  States of Matter
  • These collisions with the walls of the container imply that gases exert pressure.
  • The compression of gas by applying pressure is shown in the diagram given below:
Compression of a gas by applying pressure

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