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  Home > JCE Print > Journal of Chemical Education > Issues > 1999  > August  >
In the Classroom
Overhead Projector Demonstrations
An Apparatus for Temperature Displays
George Papageorgiou and John Xenos
Democritus University of Thrace, Dept of Primary Education, Laboratory of Chemistry, 681 00 Alexandroupolis , GREECE
Cover
August 1999
Vol. 76 No. 8
p. 1094
Abstract
In this article, a new simple and low-cost apparatus is introduced that provides the possibility to display temperature measurements in any lecture hall. The apparatus provides analog displays. Its construction requires only simple and inexpensive materials. Its main components are an ammeter, a glass tube, a temperature sensor, a 9-V battery, a variable resistance, and an on-off switch. Among the advantages of the apparatus are the linear behavior of the temperature sensor in the range 0-100 °C, the simplicity of its calibration, and of course the fact that the data can be displayed. In addition, the apparatus can be used for measurements in strong acid or base solutions.
More Information
*  Citation
 Papageorgiou, George; Xenos, John. J. Chem. Educ. 1999 76 1094.
*  Keywords
 Demonstrations; Calorimetry; Laboratory Equipment / Apparatus; Teaching / Learning Aids
*  History
 Created:
Last Updated:		 July 8, 1999
June 23, 2005
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