A Student-Constructed Galvanic Cell for the Measurement of Cell Potentials at Different Temperatures

Autor/in	Jakubowska, Anna
Titel	A Student-Constructed Galvanic Cell for the Measurement of Cell Potentials at Different Temperatures
Quelle	In: Journal of Chemical Education, 93 (2016) 5, S.915-919 (5 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/acs.jchemed.5b00124
Schlagwörter	Science Instruction; Chemistry; Science Experiments; Thermodynamics; College Science; Undergraduate Study; Science Laboratories; Laboratory Experiments + Suchen Sie Ihr Suchwort? Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Chemie; Thermodynamik; Grundstudium; Laboratory work; Laborarbeit
Abstract	A student-made galvanic cell is proposed for temperature measurements of cell potential. This cell can be easily constructed by students, the materials needed are readily available and nontoxic, and the solution applied is in an attractive color. For this cell, the potential values are excellently reproducible at each temperature, and the potential-temperature coefficient is well measurable. This experiment illustrates the determination of thermodynamic properties of a cell reaction, such as changes in entropy, enthalpy, and Gibbs energy through measurements of cell potential as a function of temperature. Students are led to understand the significance of those quantities. They also get to know the role of a supporting electrolyte in the electrochemical system. (As Provided).
Anmerkungen	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
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01