Rubber Bands, Free Energy, and Le Châtelier's Principle

Warren Hirsch
Department of Chemistry, Brooklyn College of CUNY, Brooklyn, NY 11210-2889
J. Chem. Educ., 2002, 79 (2), p 200A
DOI: 10.1021/ed079p200A
Publication Date (Web): February 1, 2002

Abstract

The following simple classroom activity illustrates the relationship of entropy to molecular disorder in polymer chains. It also deals with free energy, the Gibbs equation, spontaneous versus non-spontaneous processes, Le Châtelier's principle, and the interplay of intermolecular forces and enthalpy. It is suitable for an advanced high school or college-level general chemistry course.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Physical Chemistry

Keywords (Feature):

JCE Classroom Activity

Keywords (Subject):

Noncovalent Interactions
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History

  • Received: August 03, 2009

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