Joule-Thomson effect

[ jool-tom-suhn, joul- ]

noun

, Thermodynamics.

1. the change of temperature that a gas exhibits during a throttling process, shown by passing the gas through a small aperture or porous plug into a region of low pressure.

Joule-Thomson effect

noun

1. a change in temperature of a thermally insulated gas when it is forced through a small hole or a porous material. For each gas there is a temperature of inversion above which the change is positive and below which it is negative Also calledJoule-Kelvin effect

Word History and Origins

Origin of Joule-Thomson effect¹

1895–1900; named after J. P. Joule and Sir W. Thomson

Word History and Origins

Origin of Joule-Thomson effect¹

C20: named after James Prescott Joule and Sir William Thomson, 1st Baron Kelvin