Volumetric and acoustic properties of binary mixtures of cyclohexane + benzene and + benzaldehyde at (293.15–323.15) K
作者： Naved I. Malek , Sushma P. Ijardar , Shantilal B. Oswal
DOI: 10.1016/J.TCA.2012.04.002
关键词: Thermal expansion 、 Thermodynamics 、 Enthalpy 、 Chemistry 、 Atmospheric pressure 、 Cyclohexane 、 Isothermal process 、 Isentropic process 、 Speed of sound 、 Benzene
摘要: Abstract Densities ρ of and speeds sound u in binary mixtures cyclohexane + benzene and + benzaldehyde have been measured over the entire range composition at atmospheric pressure temperatures ranging from (293.15 to 323.15) K using an Anton-Paar DSA 5000. From these data molar isentropic compressibilities KS,m, thermal expansion coefficients αP, excess volumes V m E , S all temperatures, α P isothermal coefficient enthalpy ( ∂ H / ) T x 298.15 K were calculated. The for both are positive compositions. while curve is S-shaped cyclohexane + benzaldehyde. values negative except cyclohexane rich region mixtures. functions lower cyclohexane + benzaldehyde as compared
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