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  Home > JCE Print > Journal of Chemical Education > Issues > 1997  > June  >
In the Classroom
A Computer Model for Soda Bottle Oscillations: "The Bottelator"
Leonard J. Soltzberg, Peter G. Bowers, and Christine Hofstetter
Department of Chemistry, Simmons College, Boston, MA 02115
Cover
June 1997
Vol. 74 No. 6
p. 711
Abstract
Oscillatory release of gas sometimes occurs when a small pinhole is made in a bottle of commercial soda water. We present experimental documentation of these oscillations, and have modeled them using the Stella II® modeling package. The oscillations arise because the headspace above the liquid in the bottle is repressurized by escaping bubbles, thereby temporarily shutting off further bubble nucleation. The system makes an extremely simple demonstration of far-from-equilibrium oscillations.
More Information
*  Citation
 Soltzberg, Leonard J.; Bowers, Peter G.; Hofstetter, Christine. J. Chem. Educ. 1997 74 711.
*  Keywords
 Demonstrations, Physical Chemistry, Gases, Kinetics, Phase Transitions/Diagrams
*  History
 Created:
Last Updated:		 July 28, 1999
June 23, 2005
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