Kundt's Tube: An Acoustic Gas Analyzer

Autor/inn/en	Aristov, Natasha; Habekost, Gehsa; Habekost, Achim
Titel	Kundt's Tube: An Acoustic Gas Analyzer
Quelle	In: Journal of Chemical Education, 88 (2011) 6, S.811-815 (5 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/ed100979c
Schlagwörter	Chemistry; Acoustics; Science Instruction; College Science; Scientific Principles; Science Experiments; Teaching Methods; Undergraduate Study + Suchen Sie Ihr Suchwort? Chemie; Akustik; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Teaching method; Lehrmethode; Unterrichtsmethode; Grundstudium
Abstract	A Kundt tube is normally used to measure the speed of sound in gases. Therefore, from known speeds of sound, a Kundt tube can be used to identify gases and their fractions in mixtures. In these experiments, the speed of sound is determined by measuring the frequency of a standing sound wave at a fixed tube length, temperature, and pressure. This resonant frequency is dependent only on the properties of the gas, namely, its heat capacity ratio (adiabatic index) and molar mass. We discuss the capabilities of a Kundt tube for use as an instructional device to identify gases on the basis of their acoustic spectra and to use these spectra to determine the fractions of components of a binary mixture or to study the kinetics of gas-generating or gas-depleting reactions. (Contains 1 table, 4 figures, and 4 notes.) (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	2017/4/10