Thermodynamics of Ketone + Amine Mixtures. Part III. Volumetric and Speed of Sound Data at (293.15, 298.15, and 303.15) K for 2-Butanone + Aniline, + N-Methylaniline, or + Pyridine Systems†

作者: Iván Alonso , Ismael Mozo , Isaías García de la Fuente , Juan Antonio González , José Carlos Cobos

DOI: 10.1021/JE100472T

关键词: N-MethylanilineMolar volumeThermodynamicsIsentropic processThermal expansionChemistryAtmospheric pressurePyridineAnilineSpeed of sound

摘要: Densities, ρ, and speeds of sound, u, 2-butanone + aniline, N-methylaniline, or pyridine systems have been measured at (293.15, 298.15, 303.15) K atmospheric pressure using a vibrating-tube densimeter sound analyzer (Anton Paar model DSA-5000). The ρ u values were used to calculate excess molar volumes, VE, the functions 298.15 for speed uE, thermal expansion coefficient, αPE, isentropic compressibility, κSE. VE κSE are both negative magnitudes increase in sequence: aniline < N-methylaniline pyridine. In contrast, uE is positive changes opposite way. Data suggest existence strong interactions between unlike molecules.

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