Phase transitions and the Clausius-Clapeyron equation
| Autor: | Puzić, Jelena |
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| Přispěvatelé: | Bošković, Perica, Kranjac, Marina, Gudelj, Martina |
| Jazyk: | chorvatština |
| Rok vydání: | 2022 |
| Předmět: | |
| Popis: | Faza označava oblik tvari u kojem su ujednačena i fizikalna i kemijska svojstva. Spontani prijelaz između dvije faze naziva se fazni prijelaz i odvija se pri određenim uvjetima. Ti se uvjeti mogu vizualizirati pomoću faznih dijagrama. Klasifikacija faza se temelji na ponašanju Gibbsove energije u ovisnosti o drugim termodinamičkim varijablama. Koristeći Clausius-Clapeyronovu jednadžbu, cilj je odrediti entalpiju isparavanja hlapljive tekućine na način da se mjeri tlak pare te tekućine pri različitim temperaturama. Osim što povezuje tlak pare i temperaturu, Clausius-Clapeyronova jednadžba daje podatke o obliku i položaju fazne granice tekuće-plinovito te granice kruto-plinovito. A phase is a state with uniformity in both physical and chemical properties. A spontaneous process of transition between two phases is called a phase transition and it occurs at certain conditions. Those conditions can be visualized with phase diagrams. The classification of phases is based on the behaviour of the Gibbs energy that is dependent on other thermodynamic variables. Using the Clausius-Clapeyron equation, the aim is to determine the enthalpy of vaporization of a volatile liquid by measuring the vapour pressure at different temperatures. Other than connecting the vapour pressure and the temperature, the Clausius-Clapeyron equation gives information about the shape and placement of the liquid-gas boundary and the solid-liquid boundary. |
| Databáze: | OpenAIRE |
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