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Low‐cost differential scanning calorimeter

 

作者: Lluís Mañosa,   Marc Bou,   Carme Calles,   Albert Cirera,  

 

期刊: American Journal of Physics  （AIP Available online 1996）
卷期: Volume 64, issue 3  

页码: 283-287

 

ISSN:0002-9505

 

年代: 1996

 

DOI:10.1119/1.18216

 

出版商: American Association of Physics Teachers

 

关键词: EDUCATIONAL TOOLS;LATENT HEAT STORAGE;MEASURING INSTRUMENTS;METASTABLE STATES;PHASE TRANSFORMATIONS;SPECIFIC HEAT;THERMODYNAMIC PROPERTIES;WATER;06.;01.50.P;05.70

 

数据来源: AIP

 

摘要:

We present a simple and inexpensive calorimetric system that has been implemented in the undergraduate students laboratory of thermodynamics at the Physics Faculty of the University of Barcelona. It is shown that, after proper calibration, the system enables measurement of the relevant thermodynamic quantities at a first‐order phase transition. As an example, the solid–liquid phase transition of water can be studied: Students find that both the change in specific heat and the latent heat (and its temperature dependence) coincide within the experimental scatter with the values given in the literature.

 

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