Nonzero Ideal Gas Contribution to the Surface Tension of Water

Marcello Sega, Balázs Fábián, P. Jedlovszky

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Surface tension, the tendency of fluid interfaces to behave elastically and minimize their surface, is routinely calculated as the difference between the lateral and normal components of the pressure or, invoking isotropy in momentum space, of the virial tensor. Here we show that the anisotropy of the kinetic energy tensor close to a liquid-vapor interface can be responsible for a large part of its surface tension (about 15% for water, independent from temperature).

Original languageEnglish
Pages (from-to)2608-2612
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume8
Issue number12
DOIs
Publication statusPublished - Jun 15 2017

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ideal gas
Tensors
Surface tension
interfacial tension
Gases
tensors
liquid-vapor interfaces
Water
isotropy
Kinetic energy
water
Momentum
tendencies
Anisotropy
kinetic energy
Vapors
momentum
anisotropy
Fluids
fluids

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Nonzero Ideal Gas Contribution to the Surface Tension of Water. / Sega, Marcello; Fábián, Balázs; Jedlovszky, P.

In: Journal of Physical Chemistry Letters, Vol. 8, No. 12, 15.06.2017, p. 2608-2612.

Research output: Contribution to journalArticle

Sega, Marcello ; Fábián, Balázs ; Jedlovszky, P. / Nonzero Ideal Gas Contribution to the Surface Tension of Water. In: Journal of Physical Chemistry Letters. 2017 ; Vol. 8, No. 12. pp. 2608-2612.
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