Speeds of sound and isentropic compressibilities of (cyclohexane + benzene and (1-chlorobutane + n-hexane or n-heptane or n-octane or n-decane) at 298.15 K
1988; Elsevier BV; Volume: 20; Issue: 12 Linguagem: Inglês
10.1016/0021-9614(88)90041-9
ISSN1096-3626
AutoresElena Junquera, G. Tardajos, Emilio Aicart,
Tópico(s)Phase Equilibria and Thermodynamics
ResumoAn ultrasonic technique, described previously for pure liquids and based on the pulse-echooverlap method, has been used now to obtain the speeds of sound in binary mixtures. Measurements were carried out over the whole composition range at 298.15 K, for (cyclohexane + benzene) and for (1-chlorobutane + n-hexane or n-heptane or n-octane or n-decane). Values for the first mixture are in good agreement with literature values. Isentropic compressibiities κS and corresponding excess functions κSE have been obtained for all measured mole fractions, and the behaviour with composition and number of carbon atoms of the n-alkane is discussed.
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