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Modified Trouton's rule for predicting the entropy of boiling

  • Paul B. Myrdal
  • , Joseph F. Krzyzaniak
  • , Samuel H. Yalkowsky

Research output: Contribution to journalArticlepeer-review

Abstract

Simple modifications of Trouton's rule for estimating the entropy of boiling of organic compounds are presented. An empirical equation is developed which expresses the entropy of boiling as a function of molecular flexibility and hydrogen bonding. This equation, which enables the simple yet reasonable estimate of entropy of boiling directly from molecular structure, was generated from a training set of 850 structurally diverse compounds. The average absolute percent error for a test set of 88 compounds is 2.5% which is more accurate than Trouton's rule.

Original languageEnglish (US)
Pages (from-to)1788-1792
Number of pages5
JournalIndustrial and Engineering Chemistry Research
Volume35
Issue number5
DOIs
StatePublished - May 1996

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering

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