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  Home > JCE Print > Journal of Chemical Education > Issues > 1998  > September  >
Information • Textbooks • Media • Resources
Why the Arrhenius Equation Is Always in the "Exponentially Increasing" Region in Chemical Kinetic Studies
Harvey F. Carroll
Department of Physical Sciences, Kingsborough Community College, The City University of New York, 2001 Oriental Boulevard, Brooklyn, NY 11235
Cover
September 1998
Vol. 75 No. 9
p. 1186
Abstract
The Arrhenius equation in chemical kinetics, k = Ae-Ea/RT, has, as T gets larger, an inflection point where it changes from an "exponentially increasing" curve to one approaching an asymptote of A. The inflection point occurs at T = Ea/2R. For any activation energy, the inflection point occurs at such a high temperature that chemical kinetic studies would not be possible. Thus, the Arrhenius equation always appears to be exponentially increasing in any chemical kinetic studies of interest.

See Letter re: this article.
More Information
*  Citation
 Carroll, Harvey F. J. Chem. Educ. 1998 75 1186.
*  Keywords
 introductory, high school chem, physical chem, kinetics
*  History
 Created:
Last Updated:		 June 21, 1999
June 24, 2005
Link to Letter added (May 2004).
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  Home > JCE Print > Journal of Chemical Education > Issues > 1998 > September > Page 1186


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