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ERIC Number: EJ824920
Record Type: Journal
Publication Date: 2008-Jan
Pages: 6
Abstractor: As Provided
Reference Count: 19
ISSN: ISSN-0021-9584
Similarity and Difference in the Behavior of Gases: An Interactive Demonstration
Ashkenazi, Guy
Journal of Chemical Education, v85 n1 p72-77 Jan 2008
Previous research has documented a gap in students' understanding of gas behavior between the algorithmic-macroscopic level and the conceptual-microscopic level. A coherent understanding of both levels is needed to appreciate the difference in properties of different gases, which is not manifest in the ideal gas law. A demonstration that concurrently exposes both the difference and similarity in the behavior of two different gases was designed for this purpose. Instructions for performing the demonstration in an interactive manner are given. The theory of "knowledge in pieces" is used to analyze students' active participation and justify the proposed delivery method. (Contains 4 notes, 2 tables and 2 figures.)
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: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A