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Simple demonstrations of the energy exchange between system and its surrounding

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2001
Authors
Šišović, Dragica
Šišović, Nikola
Article (Published version)
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Abstract
Demonstrating of energy changes is performed by observing physical or chemical changes that are started in the system in contact with the reaction vessel, in which heating or cooling takes place. The procedures for two short experiments in high school general chemistry course (age of 15) are described: (i) hydration of unslaked lime melting of ice; and (ii) hydration of sulphuric acid − ether cannon. The demonstrations enable active acquiring of thermochemistry concepts. [Chem. Educ. Res. Pract. Eur.: 2001, 2, 329-332]
Keywords:
demonstrations / experiments in general chemistry / thermochemistry / energy transfer
Source:
Chemistry Education Research and Practice, 2001, 2, 3, 329-332

DOI: https://doi.org/10.1039/B1RP90032C

ISSN: 1109-4028

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URI
http://cherry.chem.bg.ac.rs/handle/123456789/4229
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