Is there any convergence between the differential and integral procedures used in chemical kinetics, particularly in nonisothermal kinetics?
✍ Scribed by E. Segal; P. Budrugeac
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 89 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0538-8066
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✦ Synopsis
Abstract
Some contradictions concerning the classification of the methods to evaluate nonisothermal kinetic parameters into differential and integral ones are analyzed. Using the theorem of media for integrals, the equivalence between the methods that use the integration on low ranges of variables and the differential methods is shown. Concerning the magnitude of the range of change of variables on which the integration of the rate equation is performed, the applicability of the isoconversional methods that use approximate expressions of the temperature integral (Simpson's formula, formula based on the theorem of media for integrals) was analyzed. Our results were verified for simulated data (which are not affected by the experimental errors) as well as for the nonisothermal data for the thermal decomposition of ammonium perchlorate. © 2006 Wiley Periodicals, Inc. Int J Chem Kinet 38: 339–344, 2006