mass-average velocity

Also contains definition of: molar average velocity in electrolytes

in electrolytes

Mass-average velocity:

$v b = ρ −1 ∑ C i M i v i$

Cf. molar average velocity:

$v m = c t −1 ∑ c i v i$

with $c t = ∑ c i$ where $M i$ = molar mass, $c t$ = total concentration ( $mol m −1$ ), $ρ$ = density of the solution ( $kg m −3$ ).

Source:

PAC, 1981, 53, 1827 (Nomenclature for transport phenomena in electrolytic systems) on page 1831

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Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.

Last update: 2014-02-24; version: 2.3.3.

DOI of this term: https://doi.org/10.1351/goldbook.M03711.

Original PDF version: http://www.iupac.org/goldbook/M03711.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.

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