Thermoacoustical approach to the intermolecular free-length of liquid mixtures

Pandey, J. D.; Dey, Ranjan; Chhabra, Jyotsna

doi:10.1039/b307435h

Cited by 24 publications

(25 citation statements)

References 4 publications

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“…This trend has also been observed for the binary liquid mixtures of 1,1,2,2-tetrachloroethane with benzene, toluene, paraxylene, acetone, cyclohexane [40], and liquid methane with liquid tetrafluoromethane [41], and the other multicomponent liquid mixtures [42]. The thermodynamic method [42] has been found to be better than the ultrasonic method for calculating L f values provided T is not very close to T c because the right-hand side of Eq. 9 vanishes when T > T c .…”

Section: Resultsmentioning

confidence: 57%

Densities, Excess Molar Volumes, Ultrasonic Speeds, and Isentropic Compressibilities of Hexan-1-ol with 1,2-Dichloroethane, 1,2-Dibromoethane, and 1,1,2,2-Tetrachloroethene at (293.15 and 298.15) K

Bhatia

Dubey

2010

Int J Thermophys

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Densities, ρ, and ultrasonic speeds, u, of binary mixtures of hexan-1-ol with 1,2-dichloroethane, 1,2-dibromoethane, and 1,1,2,2-tetrachloroethene have been measured over the entire range of composition at (293.15 and 298.15) K and atmospheric pressure. From these data, the excess molar volumes, V E , deviations of ultrasonic speed, u D , from the ultrasonic speed of an ideal mixture, excess molar isentropic compressibilities, κ E S,m , intermolecular free lengths, L f , mean molecular radii, r , and thermal expansion coefficients, α, have been calculated. The experimental ultrasonic speeds have been analyzed in terms of Nomoto's, Van Dael's ideal mixture, and Junjie relations; Jacobson's free length and Schaaffs' collision factor theories; and thermoacoustical parameters.

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Section: Resultsmentioning

confidence: 57%

Densities, Excess Molar Volumes, Ultrasonic Speeds, and Isentropic Compressibilities of Hexan-1-ol with 1,2-Dichloroethane, 1,2-Dibromoethane, and 1,1,2,2-Tetrachloroethene at (293.15 and 298.15) K

Bhatia

Dubey

2010

Int J Thermophys

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“…where the reduced molar volume, V r , and the Moelwyn-Hughes parameter, C * , were calculated from the following relations [16,17]:…”

Section: Measurements Resultsmentioning

confidence: 99%

“…Available volumes, V a , were also calculated basing on thermoacoustical parameters from the following equations [16]:…”

Section: Measurements Resultsmentioning

confidence: 99%

Acoustic and Thermophysical Properties of Binary Liquid Mixtures of Primary Butanols with Hexane and Cyclohexane at 293.15 K

Bebek

Strugała-Wilczek

2009

Int J Thermophys

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The experimental density and speed of ultrasound measurements, along with literature data, were used to calculate adiabatic and isothermal compressibility coefficients, the specific heat ratio, and isobaric thermal expansion coefficients for the binaries of 1-butanol with hexane and cyclohexane. They were also used to determine Beyer's parameter of nonlinearity, B/A, and free intermolecular lengths, L. The free intermolecular lengths, L, calculated according to the Jacobson equation, were compared with values estimated from thermoacoustical parameters.

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“…The thermoacoustical method (Nutsch-Kuhnkies, 1965;Pandey et al (2003); Pandey et al, 1991) has also been employed to obtain the available volume (V a ) using the relation…”

Section: Resultsmentioning

confidence: 99%

Thermodynamic study of binary liquid mixtures of Benzene and 1,2-dichloroethane at T = 303.15 K

Moudgil¹

2013

Int. J. Thermo

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Thermodynamic studies like density (ρ), specific gravity, ultrasonic speed (u) and excess molar volume ( ) and excess enthalpy ( ) of binary liquid mixtures of benzene + 1,2-dichloroethane have been carried out over the different range of composition at 303.15 K. Thermodynamic parameters like isentropic compressibility (k s ) intermolecular free length (L f ) and relative association (R A ) have been calculated from density and ultrasonic speed measurement. The excess thermodynamic functions have been fitted to the Redlich-Kister polynomial equation. The experimental ultrasonic speeds have been analyzed in terms of Jacobson Free Length Theory (FLT), Schaaff's Collision Factor Theory (CFT), Nomoto's relation, and Van Dael's ideal mixture relation. Intermolecular Free Length (L f ) and available volume (V a ) have been calculated from FLT, CFT and thermoacoustic approach. It is observed that density and specific gravity increases and ultrasonic speed, isentropic compressibility and intermolecular free length decreases with the mole fraction of 1,2-dichloroethane. It is found that intermolecular interaction present between binary liquid mixtures were stronger than pure solvent-solvent interactions. Observed negative values of excess molar volume and positive value of molar excess enthalpy confirm the presence of specific chemical attractive force of interactions between the two binary liquid mixtures.

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Thermoacoustical approach to the intermolecular free-length of liquid mixtures

Cited by 24 publications

References 4 publications

Densities, Excess Molar Volumes, Ultrasonic Speeds, and Isentropic Compressibilities of Hexan-1-ol with 1,2-Dichloroethane, 1,2-Dibromoethane, and 1,1,2,2-Tetrachloroethene at (293.15 and 298.15) K

Densities, Excess Molar Volumes, Ultrasonic Speeds, and Isentropic Compressibilities of Hexan-1-ol with 1,2-Dichloroethane, 1,2-Dibromoethane, and 1,1,2,2-Tetrachloroethene at (293.15 and 298.15) K

Acoustic and Thermophysical Properties of Binary Liquid Mixtures of Primary Butanols with Hexane and Cyclohexane at 293.15 K

Thermodynamic study of binary liquid mixtures of Benzene and 1,2-dichloroethane at T = 303.15 K

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