A Knudsen gas is a gas in a state of such low density that the mean free path of molecules is greater than the diameter of receptacle that contains it. The molecular dynamical regime is then dominated by the collisions of the gas molecules with the walls of the receptacle rather than with each other.
- Partington J.R. (1949) vol. 1, p. 927.
- Lebon, G., Jou, D., Casas-Vázquez, J. (2008), p. 192.
- Lebon, G., Jou, D., Casas-Vázquez, J. (2008). Understanding Non-equilibrium Thermodynamics, Springer, Berlin, ISBN 978-3-540-74251-7.
- Partington, J.R. (1949). An Advanced Treatise on Physical Chemistry, Fundamental Principles. The Properties of Gases, Longmans, Green and Co., London.
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