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

D. Wolf; A. I. Kudish

doi:10.1021/j100445a027

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

D. Wolf, A. I. Kudish

Research output: Contribution to journal › Article › peer-review

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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 ν_rel 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 language	English
Pages (from-to)	921-925
Number of pages	5
Journal	Journal of Physical Chemistry
Volume	84
Issue number	8
DOIs	https://doi.org/10.1021/j100445a027
State	Published - 1980
Externally published	Yes

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10.1021/j100445a027

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title = "Effect of isotope substitution on the viscosity of water-methanol mixtures at 25 °C",

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.",

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AU - Kudish, A. I.

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AB - 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.

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

Abstract

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