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mean free path

American  

noun

Physics, Chemistry.
  1. the average distance that a particle travels between successive collisions with other particles.


mean free path British  

noun

  1. the average distance travelled by a particle, atom, etc, between collisions

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mean free path Cultural  
  1. The average distance that an object (usually an atom or molecule) can move before colliding with something.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"Measuring the effective mean free path of the electrons is very challenging in the low kinetic energy region, as was done in this study, added Yin. "

From Science Daily Sep. 29, 2023

The mean free path is the average distance a molecule travels between collisions.

From Textbooks Feb. 14, 2019

In Precht’s experiments, in which different gases were used, the variations in the discharging potential are not so great as the variations in the mean free path of the gases.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 8 "Conduction, Electric" by Various

If, on the other hand, a gas is subjected to pressure, its molecules are crowded closer together, and the length of their mean free path is thus lessened.

From A History of Science — Volume 3 by Williams, Henry Smith

Townsend has shown that this value of the mean free path agrees well with the value 1⁄21 cm. deduced from the kinetic theory of gases for a corpuscle moving through air.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 8 "Conduction, Electric" by Various

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