van der Waals forces

van der Waals forces
van der Waals forces 'van-dər-.wȯlz- n pl the relatively weak attractive forces that are operative between neutral atoms and molecules and that arise because of the electric polarization induced in each of the particles by the presence of other particles
Waals 'wäls Johannes Diederik van der (1837-1923)
Dutch physicist. Van der Waals was a professor of physics at the University of Amsterdam. In 1873 he first postulated the van der Waals forces in support of his theoretical treatment of real as distinguished from ideal gases. In 1910 he was awarded the Nobel Prize for Physics for his research on the mathematical equations describing the gaseous and liquid states of matter.

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the relatively weak, short-range forces of attraction existing between atoms and molecules and arising from brief shifts of orbital electrons on one side of the atom or molecule and the corresponding electron shifts in adjacent molecules; it results in the attraction of nonpolar organic compounds to each other.

Medical dictionary. 2011.

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  • van der Waals' forces — [van′dər wôlz΄, vän′dər välz΄] n. [after VAN DER WAALS Johannes Diderik] weak attractive forces between electrically neutral atoms and molecules …   English World dictionary

  • van der Waals forces — van der Valso jėgos statusas T sritis chemija apibrėžtis Elektrinės kilmės molekulių sąveikos jėgos. atitikmenys: angl. van der Waals forces rus. Ван дер Ваальсовые силы; силы Ван дер Ваальса …   Chemijos terminų aiškinamasis žodynas

  • Van der Waals Forces —  Van der Waals Forces  Ван дер ваальсовы силы (силы Ван дер Вальса)   Силы взаимодействия между молекулами или частицами. Межмолекулярные ван дер ваальсовы силы определяются тремя составляющими – лондоновскими силами (см. London forces),… …   Толковый англо-русский словарь по нанотехнологии. - М.

  • van der Waals forces — Relatively weak electrical forces that attract neutral (uncharged) molecules to each other in gases, liquefied and solidified gases, and almost all organic liquids and solids. Solids held together by van der Waals forces typically have lower… …   Universalium

  • van der Waals' forces — Physical Chem. weak, nonspecific forces between molecules. Also, van der Waals forces. [1925 30; see VAN DER WAALS EQUATION] * * * van der Waals forces /van der wälz (or välz) fōrˈsis/ (chem) plural noun Weak attractive forces between molecules,… …   Useful english dictionary

  • van der Waals' forces — Physical Chem. weak, nonspecific forces between molecules. Also, van der Waals forces. [1925 30; see VAN DER WAALS EQUATION] * * * …   Universalium

  • van der Waals' forces — van′ der Waals forc es [[t]ˈvæn dər ˌwɑlz, ˌwɑls[/t]] n. pl. chem. weakly attractive forces that act between neutral atoms or molecules • Etymology: 1925–30; after J. D. van der Waals (1837–1923), Dutch physicist …   From formal English to slang

  • van der Waals forces — [ˌvan də wα:lz, vα:lz] plural noun Chemistry weak, short range electrostatic attractive forces between uncharged molecules, arising from the interaction of permanent or transient electric dipole moments. Origin C19: named after the Dutch… …   English new terms dictionary

  • van der Waals forces — noun plural Etymology: Johannes D. van der Waals died 1923 Dutch physicist Date: 1939 the relatively weak attractive forces that act on neutral atoms and molecules and that arise because of the electric polarization induced in each of the… …   New Collegiate Dictionary

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