absolute activity, λ 

https://doi.org/10.1351/goldbook.A00019
The exponential of the ratio of the chemical potential, μ, to RT where R is the gas constant and T the thermodynamic temperature, λ=eμ/RT.
Source:
Green Book, 2nd ed., p. 40 [Terms] [Book]
See also:
PAC, 1984, 56, 567. (Physicochemical quantities and units in clinical chemistry with special emphasis on activities and activity coefficients (Recommendations 1983)) on page 569 [Terms] [Paper]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 959 [Terms] [Paper]
Citation: 'absolute activity' 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.A00019 RIS BibTex EndNote
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Last revised: February 24, 2014