World Journal of Chemical Education
ISSN (Print): 2375-1665 ISSN (Online): 2375-1657 Website: http://www.sciepub.com/journal/wjce Editor-in-chief: Prof. V. Jagannadham
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World Journal of Chemical Education. 2020, 8(2), 92-99
DOI: 10.12691/wjce-8-2-5
Open AccessArticle

Experiments to Introduce Students into the Temperature Dependence of the Reaction Rate

Marcel Emmert1, Konrad Heß1, Patrick Gräb1, and Ekkehard Geidel1

1Didactics of Chemistry, Julius-Maximilians-University Würzburg, 97074 Würzburg, Germany

Pub. Date: April 25, 2020

Cite this paper:
Marcel Emmert, Konrad Heß, Patrick Gräb and Ekkehard Geidel. Experiments to Introduce Students into the Temperature Dependence of the Reaction Rate. World Journal of Chemical Education. 2020; 8(2):92-99. doi: 10.12691/wjce-8-2-5

Abstract

It is a challenge in chemical education to understand basic principles of chemical reaction kinetics on an experimental basis because of the relatively extensive experimental setup and the often time-consuming measurement series. This contribution offers an introduction into the field of the temperature dependence of reaction rate with easy-to-use experiments. Data logging systems have been used to get sufficient data-sets to evaluate different measurements in reaction kinetics. Several experiments were designed for practical courses in chemistry, which allow students to derive the simple van‘t Hoff rule on the one hand. On the other hand, the Arrhenius equation can only be derived on the basis of experimental data with the help of information from collision theory and Maxwell-Boltzmann distribution.

Keywords:
temperature dependence of reaction rate van‘t Hoff rule Arrhenius equation low-cost photometer

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