van der Waals equation

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van der Waals equation

n.
An equation of state that relates the pressure, volume, and absolute temperature of a gas taking into account the finite size of molecules, and their intermolecular attraction, having the form RT = (P + av-2)(v - b), where R is the gas constant, T is the absolute temperature, P is the pressure, v is the volume, and a and b are constants.

[After Johannes Diderik van der Waals.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

van der Waals equation

(ˈvæn də ˌwɑːlz)
n
(General Physics) an equation of state for a non-ideal gas that takes account of intermolecular forces and the volume occupied by the molecules of the gas
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