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  Home > JCE Print > Journal of Chemical Education > Issues > 1997  > April  >
In the Laboratory
A U-Tube Experiment To Discover the Curve in Boyle's Law
Thomas G. Richmond and Amy Parr
Department of Chemistry, University of Utah, Salt Lake City, Utah, 84112

Cover
April 1997
Vol. 74 No. 4
p. 414

Abstract
A discovery-style experiment is described to enable introductory chemistry students to determine the pressure versus volume behavior of a gas over a wide pressure range to "discover" Boyle's Law. A small volume of air is trapped by water or mineral oil in the sealed end of a 10-mL graduated pipet that has been bent in the shape of a U. The external pressure is reduced using a water aspirator to expand the gas sample as far as possible. The volume of the gas as a function of pressure (measured with a Bourdon tube absolute pressure gauge) is recorded as air is leaked back into the system through a needle valve. The experiment overcomes some of the limitations of previous methods and offers opportunities for several levels of data analysis.
More Information
*  Citation
Richmond, Thomas G.; Parr, Amy. J. Chem. Educ. 1997 74 414.
*  Keywords
*  History
Created:
Last Updated:
July 28, 1999
June 23, 2005
  Home > JCE Print > Journal of Chemical Education > Issues > 1997 > April > Page 414


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