246th ACS National Meeting, Indianapolis, Indiana, September 8-12, 2013

ACS 2013

Thermodynamics of stretching elastomers, metals, and ceramics: Entropy or enthalpy (CHED361)

ACS Meeting Name

Fall 2013 Indianapolis ACS National Meeting (September 8-12, 2013)

Presenter(s)

Frank Blum

Track

Division of Chemical Education (CHED)

Syposium/Session Title

(TUE-PM) Physical Chemistry of Macromolecules

Session Date and Time

Tuesday, September 10, 2013, 1:30 PM

Lecture ID

13343

Abstract

Physical chemistry classes often omit materials science coverage, yet a vibrant set of examples exist which demonstrate differences in the behavior of materials on the microscopic scale result in macroscopic thermodynamic effects. Specifically, the thermodynamics of the stretching of rubber is discussed in contrast to that in metals and ceramics. This example is often omitted from undergraduate P-chem texts, but is a great learning tool for students of materials science, chemical engineering and chemistry.[figure1]

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