Title

Exploring the thermodynamics of a rubber band

Document Type

Article

Publication Date

12-20-2012

Abstract

We describe an upper-division experiment in thermal physics where students measure the tension of a rubber band as a function of temperature and length and use a Maxwell relation to find the change in internal energy and entropy for an isothermal stretch. This allows students to experimentally check the predictions of the entropic spring model for elastomers and observe that the entropy does indeed decrease as a rubber band is stretched. © 2013 American Association of Physics Teachers.

Publication Name

American Journal of Physics

Volume Number

81

First Page

20

Last Page

23

Issue Number

1

DOI

10.1119/1.4757908

Article

20

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