IUPAC > Gold Book > alphabetical index > A > amount fraction, Math - title (Math - title for gaseous mixtures)
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amount fraction, Math - title (Math - title for gaseous mixtures)
Amount of a constituent divided by the total amount of all constituents in the mixture. It is also called mole fraction. Amount fraction is equal to the number fraction: the number of entities of one constituent divided by the total number of entities in the mixture.
See also: fraction
Source:
Green Book, p. 41
Related index:
IUPAC > Gold Book > math/physics > quantities
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Cite as: IUPAC Compendium of Chemical Terminology, Electronic version, http://goldbook.iupac.org/A00296.html.
Transformed and rewritten from PDF version (entry http://www.iupac.org/goldbook/A00296.pdf)
by: Miloslav Nic, Jiri Jirat, Bedrich Kosata, ICT Prague, Czech Republic
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