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  Home > JCE Print > Journal of Chemical Education > Issues > 2006  > April  >
In the Laboratory
New Highlights on Analyzing First-Order Kinetic Data of the Peroxodisulfate–Iodide System at Different Temperatures
J. Yperman
Laboratory of Applied Chemistry, CMK, Hasselt University, B-3590 Diepenbeek, Belgium

W. J. Guedens
Department SBG, Hasselt University, B-3590 Diepenbeek, Belgium

Cover
April 2006
Vol. 83 No. 4
p. 641
Abstract
A pseudo-first order kinetic experiment examining the peroxodisulfate–iodide system was performed using an automated undergraduate chemistry lab experiment. The kinetic study was executed at different temperatures. This format makes it possible to calculate the activation energy of this reaction during the same lab exercise. Different calculation methods are compared to find the correct rate constant and absorption value at completion time for each temperature.
Supplement
Notes for the instructor, including the details of the kinetic expressions, are available.
*  Contents JCE2006p0641W.doc (Microsoft Word)
*  Download
JCE2006p0641W.pdf

JCE2006p0641W.zip
More Information
*  Citation
 Yperman, J.; Guedens, W. J. J. Chem. Educ. 2006 83 641.
*  Keywords
 First-Year Undergraduate / General; Hands-On Learning / Manipulatives; Kinetics; Laboratory Computing / Interfacing; Laboratory Instruction; Oxidation / Reduction; Physical Chemistry; Rate Law; Thermodynamics
*  History
 Created:
Last Updated:		 2/24/2006
3/6/2006
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