ERIC Number: EJ918413
Record Type: Journal
Publication Date: 2010-Jul
Pages: 6
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: N/A
Understanding Chemical Equilibrium Using Entropy Analysis: The Relationship between [delta]S[subscript tot](sys[superscript o]) and the Equilibrium Constant
Bindel, Thomas H.
Journal of Chemical Education, v87 n7 p694-699 Jul 2010
Entropy analyses as a function of the extent of reaction are presented for a number of physicochemical processes, including vaporization of a liquid, dimerization of nitrogen dioxide, and the autoionization of water. Graphs of the total entropy change versus the extent of reaction give a visual representation of chemical equilibrium and the second law of thermodynamics. The mathematical relationship between the total entropy change for the system under standard-state conditions and the equilibrium constant is derived exclusively from entropy analysis. (Contains 16 notes, 2 figures and 3 tables.)
Descriptors: Chemistry, Scientific Concepts, Data Analysis, Graphs, Thermodynamics, Mathematics, Higher Education
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A