ERIC Number: EJ1048351
Record Type: Journal
Publication Date: 2014-Dec
Abstractor: As Provided
Reference Count: 6
Improved Method for Determining the Heat Capacity of Metals
Barth, Roger; Moran, Michael J.
Journal of Chemical Education, v91 n12 p2155-2157 Dec 2014
An improved procedure for laboratory determination of the heat capacities of metals is described. The temperature of cold water is continuously recorded with a computer-interfaced temperature probe and the room temperature metal is added. The method is more accurate and faster than previous methods. It allows students to get accurate measurements on multiple samples in a laboratory period, making it suitable for a traditional laboratory course as well as for a discovery lab approach. Results for 267 student trials (excluding 15 outliers) on five metals are reported. The average molar heat capacity for each metal was within 3.3% of the ideal Dulong and Petit value of 3R.
Descriptors: Metallurgy, Scientific Methodology, Scientific Concepts, Heat, Laboratory Experiments, Measurement Techniques, Thermodynamics, Teaching Methods, Science Activities, Educational Practices, Undergraduate Students, Hands on Science
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: firstname.lastname@example.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Authoring Institution: N/A