Speeds of sound, isentropic compressibilities, and excess molar volumes of cycloalkane, alkanes and aromatic hydrocarbons at 303.15 K. I. Results for cycloalkane plus cycloalkanes, and cycloalkane plus alkanes

The speeds of sound u, isentropic compressibilities K-S, excess isentropic compressibilities K-S(E), and excess molar volumes V-E for eleven binary mixtures of cyclopentane + cyclohexane, + cyclooctane, cyclohexane + cycloheptane, + cyclooctane, + methylcyclohexane, cyclohexane + n-hexane, + n-heptane, + n-octane, + iso-octane, methylcyclohexane + hexane and + iso-octane have been reported at 303.15 K. The effects of molecular sizes and shapes of the component molecules and of interaction energy in the mixture have been discussed. The Prigogine-Flory-Patterson (PFP) theory has been applied to analyze the present binary mixtures along with the number of other mixtures containing cis- and trans-decalins taken from the literature.