Mean Free Path

Mean Free Path

The mean free path is the average distance traveled by a particle, such as a gas molecule or photon, between collisions in a medium. It is an important concept in physics, especially in the study of transport phenomena such as thermal conductivity and diffusion. The mean free path is proportional to the inverse of the density of the medium and inversely proportional to the magnitude of the cross-sectional area for a collision of the particle.

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