How Do Gas Particles Transfer Pressure in Elastic Collisions?

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SUMMARY

Gas particles transfer pressure to the walls of a container through elastic collisions, where they retain their energy post-collision. This process does not involve energy loss; rather, the momentum change during the collision results in pressure exerted on the walls. The concept of pressure in this context is defined as force per unit area, which arises from the cumulative effect of numerous gas particles colliding with the container walls.

PREREQUISITES
  • Understanding of kinetic theory of gases
  • Familiarity with the concept of elastic collisions
  • Knowledge of pressure and its definition in physics
  • Basic grasp of momentum and force interactions
NEXT STEPS
  • Study the kinetic theory of gases in detail
  • Explore the mathematical formulation of pressure in gas systems
  • Learn about the implications of elastic vs. inelastic collisions
  • Investigate the relationship between temperature, pressure, and volume in gases (Ideal Gas Law)
USEFUL FOR

Students of physics, educators teaching gas laws, and anyone interested in thermodynamics and the behavior of gases under various conditions.

Forestman
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I have read that when a gas atom or molecule collides with the wall of a container that the collision is completely elastic, and that the gas particle has the same energy after the collision as it did before the collision. I don't understand how it could transfer pressure to the container wall if it did not lose energy though.
 
Physics news on Phys.org
Pressure being transferred doesn't mean work is being done.

For work to be done there should be a pressure along with a volume change.
 

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