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  Home > JCE Print > Journal of Chemical Education > Issues > 2004  > March  >
Research: Science and Education
A Generalized Pre-Equilibrium Approximation in Chemical and Photophysical Kinetics
Margaret Rae and Mário N. Berberan-Santos
Centro de Química-Física Molecular, Instituto Superior Técnico, 1049-001 Lisboa, Portugal
Cover
March 2004
Vol. 81 No. 3
p. 436
Abstract
For most mechanisms of chemical reactions and molecular photophysical processes the time evolution of the concentration of the intervening species cannot be obtained explicitly. The pre-equilibrium approximation is one of several useful approximation methods that allow one to go from complex systems of differential equations (the kinetic rate equations) to simple explicit solutions. In this article, a relatively general view of the pre-equilibrium approximation is presented, along with the respective solution. Several applications are also discussed.
More Information
*  Citation
 Rae, Margaret; Berberan-Santos, Mário N. J. Chem. Educ. 2004 81 436.
*  Keywords
 Enzymes; Excited States / Energy Transfer; Fluorescence Spectrometry; Kinetics; Luminescence; Mechanisms; Photochemistry
*  History
 Created:
Last Updated:		 February 3, 2004
February 18, 2005
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