surface excess concentration (at an interface), $Γ$

A quantity defined by

$Γ i = n i σ A s$

where $n i σ$ is the surface excess (or adsorption) of component $i$ and $A s$ is the area of the dividing surface or interface.

Source:

PAC, 1986, 58, 967 (Reporting data on adsorption from solution at the solid/solution interface (Recommendations 1986)) on page 970

Green Book, 2nd ed., p. 63

Related index:

IUPAC > Gold Book > math/physics > quantities

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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. doi:10.1351/goldbook.

Last update: 2009-09-07; version: 2.1.5.

DOI of this term: doi:10.1351/goldbook.S06172.

Original PDF version: http://www.iupac.org/goldbook/S06172.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 The PDF version is out of date and is provided for reference purposes only.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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surface excess, $n σ$		surface (excess) conductivity