Vapour–liquid phase equilibrium and surface tension of fully flexible Lennard–Jones chains

Kevin S. Silmore, Michael P. Howard, Athanassios Z. Panagiotopoulos

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

We report measurements of the vapour–liquid coexistence densities and surface tension of fully flexible Lennard–Jones chain molecules ranging in length from 4 to 60 beads. We demonstrate that the surface tension for all chain lengths collapses to a single master curve when plotted according to the universal parachor correlation. We find a universal parachor exponent 3.79 ± 0.05 for conditions close to the critical point, with a deviation observed for the longest chains far below the critical point.

Original languageEnglish (US)
Pages (from-to)320-327
Number of pages8
JournalMolecular Physics
Volume115
Issue number3
DOIs
StatePublished - Feb 1 2017

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Molecular Biology
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Keywords

  • Lennard–Jones chain
  • corresponding states
  • parachor
  • surface tension
  • vapour–liquid

Fingerprint

Dive into the research topics of 'Vapour–liquid phase equilibrium and surface tension of fully flexible Lennard–Jones chains'. Together they form a unique fingerprint.

Cite this