IUPAC - mass-average velocity (M03711)

mass-average velocity

in electrolytes

also contains definition of: molar average velocity in electrolytes

https://doi.org/10.1351/goldbook.M03711

Mass-average velocity:

ν_{b} = ρ^{- 1} \sum C_{i} M_{i} ν_{i}

Cf. molar average velocity:

ν_{m} = c_{t}^{- 1} \sum c_{i} ν_{i}

with

c_{t} = \sum 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 [Terms] [Paper]

Citation: 'mass-average velocity' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.M03711 RIS BibTex EndNote

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Last revised: February 24, 2014

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mass-average velocity