Three Forms of Energy

Sigthór Pétursson
Department of Natural Resource Science, University of Akureyri, 600 Akureyri, Iceland
J. Chem. Educ., 2003, 80 (7), p 776
DOI: 10.1021/ed080p776
Publication Date (Web): July 1, 2003
History, Education, and Documentation

Abstract

The paper, which is intended for students and teachers of general and physical chemistry, presents questions relating to thermal, mechanical, and gas expansion processes and works out the energy involved. The examples illustrate the physical meaning of the SI unit for energy, the joule, and draws attention to the comparison between heat and mechanical energy. The energy expenditure involved in our basic bodily functions versus moderate activity is also discussed.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Physical Chemistry

Keywords (Feature):

Resources for Student Assessment

Keywords (Pedagogy):

Testing / Assessment

Keywords (Subject):

Calorimetry / Thermochemistry
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History

  • Received: August 03, 2009

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