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4 International Letters of Chemistry, Physics and Astronomy

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Study on thermodynamic properties of binary mixtures of diethyl carbonate with benzonitrile, benzaldehyde at different temperatures

Sudhamsa B., Babu M. S., Narendra K.

International Letters of Chemistry, Physics and Astronomy

2014

Vol. 19, iss. 1

1--7

The speed of sound and density in binary liquid mixture of diethyl carbonate + benzonitrile, + benzaldehyde have been determined at temperatures 298.15, 308.15 and 318.15 K over the whole composition range. The data have been utilized to estimate the excess adiabatic compressibility (βE), excess intermolecular free length (Lf E), excess speed of sound (uE) at the above temperatures. The excess values have been found to be useful in estimating the strength of the interactions in the liquid mixtures.

Theoretical ultrasonic velocities in binary liquid mixture containing aniline and anisole at different temperatures – a comparative study

Sreedevi Y., Srinivasu Ch., Fakruddin Sk., Narendra K., Venkateswara Rao B.R., Nirmal Rajeev Y.

International Letters of Chemistry, Physics and Astronomy

2013

Vol. 7, iss. 2

120--124

Ultrasonic velocity is measured experimentally at 3MHz frequency in the binary liquid mixture containing aniline and anisole at different temperatures over the entire composition range and theoretical values of ultrasonic velocity have been evaluated by using Nomoto’s relation, Impedance relation, Van Dael ideal mixture relation. These theoretical values are compared with the experimental values. A good agreement has been found between experimental and theoretical ultrasonic velocities.

Study of acoustical parameters in binary liquid mixture containing 1-butanol and hexane at temperatures 313.15 K, 318.15 K and 323.15 K

Srinivasu C. H., Kumar A. K., Fakruddin S. K., Narendra K., Anjaneyulu T.

International Letters of Chemistry, Physics and Astronomy

2013

Vol. 13

1-7

The values of ultrasonic velocity (u), density (ρ), and viscosity (η) have been measured experimentally in the binary liquid mixture containing 1-butanol and hexane over the entire range of composition at different temperatures 313.15 K, 318.15 K and 323.15 K. This experimental data have been used to calculate the acoustical parameters such as adiabatic compressibility (β), free length (Lf), molar volume (Vm) and acoustic impedance(z). The results have been qualitatively used to explain the molecular interactions between the components of the liquid mixture.

Studies of densities, viscosities and ultrasonic speeds of binary mixtures containing isopropyl alcohol and ketones at different temperatures

Srinivas S. S. J., Tulasi Koteswari Bai B., Babu Rao K., Narendra K., Sarath Babu M.

International Letters of Chemistry, Physics and Astronomy

2013

Vol. 10, iss. 2

151-158

The densities, viscosities and ultrasonic velocities of binary liquid mixtures of Isopropyl alcohol with acetophenone and methyl isobutyl ketone (MIBK) have been measured at temperatures 298.15 and 308.15 K over the entire range of mole fraction. From these data, acoustical parameters such as adiabatic compressibility (β), free volume (Vf) and free length (Lf) have been estimated using the standard relations. The results are interpreted in terms of molecular interactions present in the mixtures.