Title:
Entropy Diagrams
Authors:
Craig, Norman C.
Abstract:
New displays, called entropy diagrams, show graphically how entropy changes compete in physicochemical processes. Examples of entropy diagrams are given for an equilibrium vaporization, a spontaneous evaporation into a vacuum, a vapor-pressure lowering due to the presence of an involatile solute, a chemical reaction under standard-state conditions and at equilibrium, an osmotic equilibrium, and an electrochemical equilibrium in a galvanic cell. On these diagrams entropy contributions due to standard-state changes, dilutions, and energy exchanges with thermal reservoirs are shown algebraically as well as diagrammatically. Entropy diagrams are useful for illustrating entropy analyses in which all transformations of matter and energy are related to entropy effects.
Citation:
Craig, Norman C. 1996. "Entropy Diagrams." Journal of Chemical Education 73(8): 710.
Publisher:
American Chemical Society, Division of Chemical Education
DATE ISSUED:
1996
Department:
Chemistry
Type:
Article
PUBLISHED VERSION:
10.1021/ed073p710
PERMANENT LINK:
http://hdl.handle.net/11282/334024

Full metadata record

DC FieldValue Language
dc.contributor.authorCraig, Norman C.en
dc.date.accessioned2014-11-10T14:12:40Z-
dc.date.available2014-11-10T14:12:40Z-
dc.date.issued1996en
dc.identifier.citationCraig, Norman C. 1996. "Entropy Diagrams." Journal of Chemical Education 73(8): 710.en
dc.identifier.issn0021-9584en
dc.identifier.urihttp://hdl.handle.net/11282/334024-
dc.description.abstractNew displays, called entropy diagrams, show graphically how entropy changes compete in physicochemical processes. Examples of entropy diagrams are given for an equilibrium vaporization, a spontaneous evaporation into a vacuum, a vapor-pressure lowering due to the presence of an involatile solute, a chemical reaction under standard-state conditions and at equilibrium, an osmotic equilibrium, and an electrochemical equilibrium in a galvanic cell. On these diagrams entropy contributions due to standard-state changes, dilutions, and energy exchanges with thermal reservoirs are shown algebraically as well as diagrammatically. Entropy diagrams are useful for illustrating entropy analyses in which all transformations of matter and energy are related to entropy effects.en
dc.language.isoen_USen
dc.publisherAmerican Chemical Society, Division of Chemical Educationen
dc.identifier.doi10.1021/ed073p710en
dc.subject.departmentChemistryen
dc.titleEntropy Diagramsen
dc.typeArticleen
dc.identifier.journalJournal of Chemical Educationen
dc.subject.keywordThermodynamicsen
dc.identifier.volume73en
dc.identifier.issue8en
dc.identifier.startpage710en
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