A term sometimes used for a
rate coefficient. For example, if the rate equation is:
the function
![k [A]](../../mathml/P04933-1.png)
is the pseudo first-order
rate constant (or first-order
rate coefficient) with respect to B. Similarly,
![k [B]](../../mathml/P04933-2.png)
is the pseudo first-order
rate constant (or first-order
rate coefficient) with respect to A. The term pseudo
rate constant is particularly useful when the concentration of one reactant is much greater than
that of another.
Source:
PAC, 1996, 68, 149
(A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC
Recommendations 1996))
on page 178
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.
![v = k [A] [B]](../../mathml/P04933-0.png){kind=small}
