NotesFAQContact Us
Search Tips
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ820757
Record Type: Journal
Publication Date: 2007-Mar
Pages: 3
Abstractor: As Provided
Reference Count: 6
ISSN: ISSN-0021-9584
The Determination of Heat Capacity Ratios in a Simple Open System
Holden, Glen L.
Journal of Chemical Education, v84 n3 p513-515 Mar 2007
A virtually closed system is treated as open and compared to known results. The classic experiment of Clement and Desormes provides the conceptual framework for this open system approach in determining the molar heat capacity ratios, lambda. This alternate view, extends the theoretical treatment beyond the first law of thermodynamics for closed systems, utilizing both an energy and entropy balance, offering an opportunity to test the value of this perspective against historical methods. The arbitrary choice of the system and its boundaries is shown to affect the nature and magnitude of the work terms, along with the accompanying simplifications in the fundamental equation. (Contains 1 figure.)
Division of Chemical Education of the American Chemical Society. Subscription Department, P.O. Box 1267, Bellmawr, NJ 08099-1267. Tel: 800-691-9846; Tel: 856-931-5825; Fax: 856-931-4115; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A