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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > April  >
In the Classroom
Chemical Principles Revisited
The Extent of Reaction, Dx--Some Nuts and Bolts
Gavin D. Peckham
Department of Chemistry, University of Zululand, Private Bag X 1001, Kwa Dlangezwa 3886, South Africa
Cover
April 2001
Vol. 78 No. 4
p. 508
Abstract
The "extent of reaction", Dx, is inappropriately used in a number of reputable textbooks. This article uses a series of simple numerical examples to clarify the way in which values of Dx depend on the reaction stoichiometry and the role of limiting reagents. An IUPAC compatible method is suggested whereby values of Dx may be restricted to a range of 0 to 1, and the advantages of this restriction are discussed.
More Information
*  Citation
 Peckham, Gavin D. J. Chem. Educ. 2001 78 508.
*  Keywords
 Equilibrium; Stoichiometry; Teaching / Learning Aids; Thermodynamics
*  History
 Created:
Last Updated:		 March 2, 2001
April 14, 2005
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