noun

*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.

Origin of van der Waals equation

AfterJohannes Diderik**van der Waals**

noun

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.

Origin of van der Waals equation

AfterJohannes DiderikTHE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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**MLA Style**

"van der Waals equation." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/van-der-waals-equation>.

**APA Style**

van der Waals equation. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/van-der-waals-equation

An equation 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 of fluid per molecule, *a* is a measure of the attraction of the molecules for each other (due to **van der Waals forces**),
and *b* is the volume occupied by a single molecule. The equation accurately captures phase transitions between liquid and gas phases of substances.

See also ideal gas law

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Cite this page

**MLA Style**

"van der Waals equation." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/van-der-waals-equation>.

**APA Style**

van der Waals equation. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/van-der-waals-equation

- van der Waals equation
- van der Waals force
- van der Waals' forces
- van der Waals Johannes Diderik