Effect of isotope substitution on the viscosity of water-methanol mixtures at 25 °C

D. Wolf, A. I. Kudish

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

The viscosities of H2O-, D216O-, and D218)O-methanol mixtures were measured at 25 °C. The latter two exhibited both a shift in the position of the viscosity maximum (lower alcohol concentration) and slightly lower νrel values relative to normal water (H2O). Upon applying Eyring's absoslute rate theory to the data, it has been found that a single plot of the excess free energy of activation for viscous flow vs. mole fraction of alcohol fits the date for all three water-methanol mixtures studied.

Original languageEnglish
Pages (from-to)921-925
Number of pages5
JournalJournal of Physical Chemistry
Volume84
Issue number8
DOIs
StatePublished - 1 Jan 1980

ASJC Scopus subject areas

  • Engineering (all)
  • Physical and Theoretical Chemistry

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