The Isokinetic Relationship for Heterogeneous Reaction Systems

Wm. Curtis Conner² And Wolfgang Linert¹*

¹Department Chemical Engineering, University of Mass. Amherst, MA 01003 U.S. A. ²Institute of Inorganic Chemistry, Technical University of Vienna, Getreidemarkt 9, A-1060 Vienna, Austria

ABSTRACT:

The occurrence of a common point (area) of intersection of Arrhenius lines, called Isokinetic Relationship can be interpreted as a relation between temperature dependent (e.g., Ea) and independent terms (e.g., "preexponential") kinetic factors. In analogy to homogeneous phase reactions a heat bath analysis is used to express the interaction between the reacting species and the sources of available thermal energy within the total reaction system. The isokinetic temperature, ic the ternpra cure at which all members of the reaction seaction series exhibit identical reaction rates this value is associated with the ratio of the changes of the mentioned factors within the series), can be related to an active heat bath frequency. This relationship is exemplified and ihstcd using information from the infrared spectra of catalytic solids assumed to act as heat bath systems. Agreement between theory and available experimental data is found and testifies to a relationship between the energetic availability and accessibility for reacting systems.

KEYWORDS:

Isokinetic; Heterogeneous; Systems

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Copy the following to cite this article: Conner W. C, Linert W. The Isokinetic Relationship for Heterogeneous Reaction Systems. Orient J Chem 1989;5(3).

Copy the following to cite this URL: Conner W. C, Linert W. The Isokinetic Relationship for Heterogeneous Reaction Systems. Orient J Chem 1989;5(3). Available from: http://www.orientjchem.org/?p=41440