An Inexpensive Solution Calorimeter

Autor/inn/en	Kavanagh, Emma; Mindel, Sam; Robertson, Giles; Hughes, D. E. Peter
Titel	An Inexpensive Solution Calorimeter
Quelle	In: Journal of Chemical Education, 85 (2008) 8, S.1129-1130 (2 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
Schlagwörter	Reaction Time; Heat; Laboratory Experiments; Undergraduate Students; Undergraduate Study; College Science; Thermodynamics; Measurement; High School Students; Introductory Courses; Measurement Equipment; Computer Software; Science Instruction; Scientific Concepts + Suchen Sie Ihr Suchwort? Reaktionsvermögen; Hitze; Laboratory work; Laborarbeit; Grundstudium; Thermodynamik; Messverfahren; High school; High schools; Student; Students; Oberschule; Schüler; Schülerin; Studentin; Einführungskurs; Messinstrument; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht
Abstract	We describe the construction of a simple solution calorimeter, using a miniature bead thermistor as a temperature-sensing element. This has a response time of a few seconds and made it possible to carry out a thermometric reaction in under a minute, which led to minimal heat losses. Small temperature changes of 1 K associated with enthalpies of solution or enthalpies of neutralization can be measured with accuracy better than 1%. The degree of accuracy depended on how many measurements were made and gave the student an opportunity to think about different sources of error. (Contains 1 figure.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10