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Excess isobaric heat capacity, density and speed of sound of {xCF3CH2OH + (1−x)CH3CN} at the temperature 308.15 K

✍ Scribed by Masaji Nishimoto; Katsutoshi Tamura; Sachio Murakami

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

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✦ Synopsis

Excess isobaric heat capacity C E p,m , density r, and speed of sound u of {xCF3CH2OH + (1x)CH3CN} were measured at the temperature 308.15 K and r was also measured at T = 288.15 K. From the values of r for two temperatures, the excess thermal expansion factor a E was estimated to be 4•10 -5 K -1 as the maximum value. This value is not negligible for estimation of the isothermal compressibility kT, the isochoric heat capacity CV,m of the mixture from isentropic compressibility kS, and the isobaric excess heat capacity C E p,m using thermodynamic relations. Temperature dependence of excess properties is discussed in relation to the previous results at T = 298.15 K.

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