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The Energy of Nature$
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E. C. Pielou

Print publication date: 2001

Print ISBN-13: 9780226668062

Published to Chicago Scholarship Online: February 2013

DOI: 10.7208/chicago/9780226668055.001.0001

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PRINTED FROM CHICAGO SCHOLARSHIP ONLINE (www.chicago.universitypressscholarship.com). (c) Copyright University of Chicago Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CHSO for personal use.date: 25 July 2021

Chemical Energy

Chemical Energy

Chapter:
(p.108) 10 Chemical Energy
Source:
The Energy of Nature
Author(s):

E. C. Pielou

Publisher:
University of Chicago Press
DOI:10.7208/chicago/9780226668055.003.0010

Nearly every solid material on earth consists of chemical compounds, sometimes only one, sometimes several together. Solid substances composed of single elements uncombined with others are rarities; even “pure” gold and “pure” iron are almost never absolutely chemically pure. When elements combine to form compounds, energy is either produced (or liberated — “evolved,” as it is often called) or used up (“consumed”). A reaction that liberates energy, most often in the form of heat, is exothermic; a reaction that will take place only if energy is provided from some outside source is endothermic. This chapter discusses the following: the energy in chemical bonds; energy in chemical compounds; ice and stream; and chemical energy to electrical energy and back again.

Keywords:   chemical compounds, chemical energy, chemical reactions, chemical bonds, ice, stream, electrical energy

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