Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Zeitschrift für Naturforschung A

A Journal of Physical Sciences

Editor-in-Chief: Holthaus, Martin

Editorial Board: Fetecau, Corina / Kiefer, Claus


IMPACT FACTOR 2016: 1.432

CiteScore 2017: 1.30

SCImago Journal Rank (SJR) 2017: 0.403
Source Normalized Impact per Paper (SNIP) 2017: 0.632

Online
ISSN
1865-7109
See all formats and pricing
More options …
Volume 51, Issue 12

Issues

The Rationale of Trouton's Rule and of the Trouton-Hildebrand-Everett Rule

S. R. Logan
Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/zna-1996-1215

Abstract

In seeking a rational basis for the general rules regarding the enthalpy of vaporisation of a liquid, it is shown that whereas Trouton's Rule is consistent with the assumption that the effective molar volume, v, for translational motion in the liquid is a constant fraction (2 x 10-5) of the molar volume of vapour at 1 atm, the rather better approximation of Trouton, Hildebrand and Everett (THE), which corrects for the effects of varying molecular density in the vapour, re-quires that v be 1.5 cm3 mol-1 for all substances. The introduction of the apparently more reasonable assumption that v is a constant fraction of the molar volume of the liquid, is shown to lead to an expression exhibiting much poorer cor-relation. It thus offers no improvement to Trouton's rule nor to the THE rule.

Keywords: Trouton's rule; The THE rule; Entropy of vaporisation; Translational entropy; Sackur-Tetrode equation

About the article

Received: 1996-10-09

Published Online: 2014-06-02

Published in Print: 1996-12-01


Citation Information: Zeitschrift für Naturforschung A, Volume 51, Issue 12, Pages 1247–1248, ISSN (Online) 1865-7109, ISSN (Print) 0932-0784, DOI: https://doi.org/10.1515/zna-1996-1215.

Export Citation

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
James A. Green, Sheeba Jem Irudayam, and Richard H. Henchman
The Journal of Chemical Thermodynamics, 2011, Volume 43, Number 6, Page 868

Comments (0)

Please log in or register to comment.
Log in