demon of Maxwell

demon of Maxwell

[′dē·mən əv ′maks‚wel]
(thermodynamics)
Hypothetical creature who controls a trapdoor over a microscopic hole in an adiabatic wall between two vessels filled with gas at the same temperature, so as to supposedly decrease the entropy of the gas as a whole and thus violate the second law of thermodynamics. Also known as Maxwell's demon.
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