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  Home > JCE Print > Journal of Chemical Education > Issues > 2006  > January  >
Information • Textbooks • Media • Resources
Using Computer Simulations To Teach Salt Solubility. The Role of Entropy in Solubility Equilibrium
Victor M. S. Gil
Department of Chemistry, University of Coimbra, Portugal

João C. M. Paiva
Department of Chemistry, University of Porto, Portugal

Cover
January 2006
Vol. 83 No. 1
p. 170
Abstract
The question of solubility of salts in water, besides being a field of interest in itself, provides good examples for the illustration of basic thermodynamics applied to chemistry. In this paper two pairs of salts, NaCl and CaCO3, and MgCO3 and MgSO4, are discussed to illustrate the interpretation of the different behavior of salts in water in terms of the fundamental concept of entropy (entropy of an isolated system or total entropy of a closed system plus its surroundings). As part of this discussion we also show how computer simulations can help improve students' understanding of these chemistry concepts.

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More Information
*  Citation
 Gil, Victor M. S.; Paiva, João C. M. J. Chem. Educ. 2006 83 170.
*  Keywords
 Computational Chemistry; Equilibrium; First-Year Undergraduate / General; High School / Introductory Chemistry; Thermodynamics
*  History
 Created:
Last Updated:		 12/1/2005
12/7/2005
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