The thermal conductivity jump at crystal-liquid phase transition in CHCl₃, C₆H₆, and CCl₄: the action of rotational molecular motion
The thermal conductivity of liquid CHCl₃, C₆H₆, and CCl₄ was measured by steady-state method under saturated vapour pressure in the temperature areas that correspond to pre-crystallization temperatures. Based on the obtained experimental results, we have investigated the isobaric thermal conductivit...
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| Datum: | 2009 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2009
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| Schriftenreihe: | Физика низких температур |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | The thermal conductivity jump at crystal-liquid phase transition in CHCl₃, C₆H₆, and CCl₄: the action of rotational molecular motion / I.O. Pursky, V.A. Konstantinov, V.V. Bulakh // Физика низких температур. — 2009. — Т. 35, № 4. — С. 401-404. — Бібліогр.: 6 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | The thermal conductivity of liquid CHCl₃, C₆H₆, and CCl₄ was measured by steady-state method under saturated vapour pressure in the temperature areas that correspond to pre-crystallization temperatures. Based on the obtained experimental results, we have investigated the isobaric thermal conductivity jump ΔΛp at crystal–liquid phase transition in CHCl₃, C₆H₆, and CCl₄. The contributions of the phonon–phonon and phonon–rotational interaction to the total thermal resistance, in solid and liquid state, are specified using modified method of reduced coordinates. A reduction in the thermal conductivity ΔΛp at crystal–liquid phase transition is explained by a combined effect of variations in positional distribution of molecules and in form of rotational molecular motion. |
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