Infinitesimal changes in thermodynamic functions with
extent of reaction divided by the infinitesimal increase in the extent when all the reactants and products
are in their standard states. For the quantity
they should be denoted by
,
but usually only
is used.
For specific types of reactions the subscript r is replaced by: f for formation, c
for combustion, a for atomization and superscript
‡ for
activation.
Source:
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.
https://doi.org/10.1351/goldbook.
