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  Home > JCE Print > Journal of Chemical Education > Issues > 2006  > April  >
In the Classroom
Give Them Money: The Boltzmann Game, a Classroom or Laboratory Activity Modeling Entropy Changes and the Distribution of Energy in Chemical Systems
Robert M. Hanson
Department of Chemistry, St. Olaf College, Northfield, MN 55057

Bridget Michalek
Eastview High School, Apple Valley, MN 55124

Cover
April 2006
Vol. 83 No. 4
p. 581

Abstract
Described here is a short, simple activity we call the "Boltzmann game" that can be used in any high school or college chemistry classroom or lab to explore the way energy is distributed in real chemical systems and as an entry into discussions of the probabilistic nature of entropy. All that is needed is about 30 minutes, some open space, some paper money, and a group of students who know how to play (or can be taught quickly) the game "rock–paper–scissors." The relationships among probability, energy distribution, microstates, equilibrium, fluctuation, chemical reaction, and entropy as a measure of the "dispersal" of energy are discussed in the context of this activity.
Supplement
Student versions, instructor notes, including the suggested form for collecting data, Boltzmann bucks, Morse potential data for H2, HCl, and Cl2, and Visual Basic programs and are available.
*  Contents Folder JCE2006p0581W containing JCE2006p0581W.doc and boltzdollars.doc (Microsoft Word), JCE2006p0581W.xls (Microsoft Excel), JCE2006p0581W.wpd (Word Perfect), and boltz.exe and wintropy.exe (Windows executable).
*  Download
JCE2006p0581W.pdf

JCE2006p0581W.zip

More Information
*  Citation
Hanson, Robert M.; Michalek, Bridget. J. Chem. Educ. 2006 83 581.
*  Keywords
Demonstrations; Equilibrium; First-Year Undergraduate / General; Hands-On Learning / Manipulatives; High School / Introductory Chemistry; Inorganic Chemistry; Laboratory Instruction; Statistical Mechanics; Thermodynamics
*  History
Created:
Last Updated:
2/24/2006
3/6/2006
  Home > JCE Print > Journal of Chemical Education > Issues > 2006  > April  > Page 581


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