http://www.cnr.it/ontology/cnr/individuo/prodotto/ID18422
Using Peltier cell to study solid-liquid-vapour transitions and supercooling (Articolo in rivista)
- Type
- Label
- Using Peltier cell to study solid-liquid-vapour transitions and supercooling (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Torzo Giacomo 1, Soletta Isabella 2, Branca Mario 3 (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1 ICIS-CNR and Physics Department of Padova University, Padova, Italy
2 Liceo Scientifico Fermi, Alghero, Italy
3 Chemical Department of Sassari University, Sassari, Italy
(literal)
- Titolo
- Using Peltier cell to study solid-liquid-vapour transitions and supercooling (literal)
- Abstract
- We propose an apparatus for teaching experimental thermodynamics in undergraduate introductory courses, using thermoelectric modules and real-time data acquisition system. The device may be made at low cost, still providing an easy approach to the investigation of liquid-solid and liquid-vapour phase transitions and of metastable states (supercooling). The thermoelectric module (a technological evolution of the thermocouple) is by itself an interesting subject that offers a clear example of both thermo-electric (Seebeck effect) and electro-thermal (Peltier effect) energy transformation. We report here some cooling/heating measurements for several liquids and mixtures, including water, salt/water, ethanol/water and sodium acetate, showing how to evaluate the phenomena of freezing point depression and elevation, and how to evaluate the water latent heat (literal)
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