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Low-temperature heat capacities and thermodynamic properties of 1,1-difluoro-1,2,2-trichloroethane and 1,2-difluoro-1,1,2-trichloroethane

✍ Scribed by R.M. Varushchenko; A.I. Druzhinina; M.V. Korshunova


Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
208 KB
Volume
29
Category
Article
ISSN
0021-9614

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✦ Synopsis


The heat capacities of Freons CF2ClCHCl2 and CFCl2CHFCl have been measured in an adiabatic, fully-automatic calorimeter over the temperature ranges from 5 K to 325 K and 58 K to 326 K, respectively. The substances were in the glassy, partly crystalline, and liquid states. The glass-transition temperatures, melting temperatures, and the main thermodynamic functions -{G°m(T ) -H°m(0)}/T, {H°m(T ) -H°m(0)}/T, and {S°m(T ) -S°m(0)} have been determined at T = 298.15 K for both substances.


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