Computer Science – Learning
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20914823h&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #148.23; Bulletin of the American Astronomical Society,
Computer Science
Learning
Scientific paper
Historically few upper-level undergraduate thermodynamics courses have included lab activities. Developing labs for these courses is motivated by the growing awareness of the importance of providing students hands-on exposure to the physics principles they are learning. We report on a project to develop lab activities exploring the role of entropy and energy in determining pressure in gasses and force in rubber bands. Several authors [1] have described experiments with rubber bands illustrating the entropic origin of the restoring force of a rubber band. It is well known that the pressure in an ideal gas also has an entropic origin. By comparing the behavior of gasses and rubber bands, important aspects of the concept of entropy and its role in systems can be brought out. We describe experiments that compare these systems by measuring P vs T for gasses and f vs. T for rubber bands.
1. See for example, J.P. Byrne, J. Chem. Ed., 71, 531 (1994), and references therein.
Gimre K. H.
Gimre K. T.
Hall Stephen C.
Townsend E. A.
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