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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume 4 Issue 2 (1999) pp 58-62

The Le Châtelier Principle: How Much a Principle?

Jaime Wisniak

Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel 84105

Published online: 2 April 1999

Abstract. The Principle of Le Châtelier is analyzed for the case of reactions taking place with real gases. The Principle, as usually stated in textbooks, is true only for ideal gas mixtures, and may be violated when the nonideal behavior of a gas is taken into consideration.

Key Words:  In the Classroom; teaching; thermodynamics; equilibrium; gases; physical chemistry

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Issue date: April 2 , 1999

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