activity (relative activity), \(a\)

https://doi.org/10.1351/goldbook.A00115
Defined by the equation \[a = e^{\frac{\mu - \mu^{o}}{R\,T}}\] where \(R\) is the @G02579@, \(T\) the @T06321@, \(\mu\) the @C01032@ and \(\mu^{o}\) the @S05908@ the definition of which depends on the choice of the @S05925@.
See also:
absolute activity
Sources:
Green Book, 2nd ed., p. 49 [Terms] [Book]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 989 [Terms] [Paper]
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). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014