[jool-tom-suh n, joul-]
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.
butterfly effectRead more in this article about some frequently asked questions and fun facts related to our definitions.
IKEA EffectRead more in this article about some frequently asked questions and fun facts related to our definitions.
Compare free expansion.
Origin of Joule-Thomson effect
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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 negativeAlso called: Joule-Kelvin effect
Word Origin for Joule-Thomson effect
C20: named after James Prescott Joule and Sir William Thomson, 1st Baron Kelvin
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