scholarly journals Theoretical Ultrasonic Velocities in Binary Liquid Mixture Containing Aniline and Anisole at Different Temperatures – A Comparative Study

2013 ◽  
Vol 12 ◽  
pp. 120-124 ◽  
Author(s):  
Y. Sreedevi ◽  
Ch. Srinivasu ◽  
Sk. Fakruddin ◽  
K. Narendra ◽  
B.R. Venkateswara Rao ◽  
...  
Keyword(s):  
Comparative Study ◽  
Ultrasonic Velocity ◽  
Composition Range ◽  
Liquid Mixture ◽  
Binary Liquid Mixture ◽  
Ultrasonic Velocities ◽  
Binary Liquid ◽  
Different Temperatures ◽  
Experimental Values ◽  
Good Agreement

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.

Pressure-dependent study of ultrasonic velocity of benzene + nitrobenzene system at 293.15, 303.15, and 313.15 K

1989 ◽  
Vol 67 (3) ◽  
pp. 437-441 ◽  
Author(s):  
J. D. Pandey ◽  
R. D. Rai ◽  
R. K. Shukla
Keyword(s):  
Binary Mixtures ◽  
Ultrasonic Velocity ◽  
Liquid Mixture ◽  
Binary Liquid Mixture ◽  
Ultrasonic Velocities ◽  
Theoretical Evaluation ◽  
Binary Liquid ◽  
Elevated Pressures ◽  
Different Temperatures ◽  
Theory And Experiment

Various statistical and empirical theories of ultrasonic velocity have been applied to a binary liquid mixture (benzene + nitrobenzene) at elevated pressures and their validity have been tested. A pressure-dependent study of ultrasonic velocities has been made at three different temperatures (293.15, 303.15, and 313.15 K). The agreement between the theory and experiment is found to be satisfactory. Keywords: ultrasonic velocity, benzene + nitrobenzene, pressure dependent, theoretical evaluation, binary mixtures at elevated pressures.

scholarly journals Experimental and Theoretical Evaluation of Ultrasonic Velocities of Binary Liquid Mixtures of Anisaldehyde and Toluene at Different Temperatures

2011 ◽  
Vol 8 (3) ◽  
pp. 977-981
Author(s):  
CH. Srinivasu ◽  
K. Narendra ◽  
CH. Kalpana
Keyword(s):  
Ultrasonic Velocity ◽  
Theoretical Models ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Ultrasonic Velocities ◽  
Theoretical Evaluation ◽  
Binary Liquid ◽  
Different Temperatures ◽  
Experimental Values ◽  
Good Agreement

Theoretical velocities of binary liquid mixtures of anisaldehyde with toluene at 303.15, 308.15, 313.15 and 318.15 K have been evaluated by using theoretical models of liquid mixtures such as Nomoto, Van Dael-Vangeel, Schaff’s collision factor theory and Junjie’s relations. Density and ultrasonic velocity of these mixtures have also been measured as a function of concentration and temperature and the experimental values are compared with the theoretical values. A good agreement has been found between experimental and Nomoto’s theoretical ultrasonic velocities. The results are explained in terms of intermolecular interactions occurring in these binary liquid mixtures.

scholarly journals Theoretical Evaluation of Ultrasonic Velocities of Binary Liquid Mixtures of 1-Bromopropane in Chlorobenzene at 303.15, 308.15, 313.15 and 318.15 K

2014 ◽  
Vol 30 ◽  
pp. 9-17
Author(s):  
Ch. Praveen Babu ◽  
G. Pavan Kumar ◽  
B. Nagarjun ◽  
K. Samatha
Keyword(s):  
Intermolecular Interactions ◽  
Theoretical Models ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Ultrasonic Velocities ◽  
Theoretical Evaluation ◽  
Binary Liquid ◽  
Different Temperatures ◽  
Experimental Values ◽  
Good Agreement

Theoretical velocities of binary liquid mixtures of 1-bromopropane with chlorobenzene at 2 MHz and four different temperatures 303.15, 308.15, 313.15 and 318.15 K, have been evaluated as a function of concentration and temperature. The experimental values are compared with theoretical models of liquid mixtures such as Nomoto, Van Dael-Vangeel, Impedance Relation, Rao’s Specific Velocity Method, Junjie’s relations and Free Length Theory. In the chosen system there is a good agreement between experimental and theoretical values calculated by Nomoto’s theory. The deviation in the variation of U2exp/U2imx from unity has also been evaluated for explaining the non ideality in the mixtures. The results are explained in terms of intermolecular interactions occurring in these binary liquid mixtures.

scholarly journals Evaluation of Excess Thermodynamic Parameters in a Binary Liquid Mixture (Cyclohexane +O-Xylene) at Different Temperatures

2010 ◽  
Vol 7 (3) ◽  
pp. 927-934 ◽  
Author(s):  
K. Narendra ◽  
P. Narayanamurthy ◽  
CH. Srinivasu
Keyword(s):  
Excess Enthalpy ◽  
Composition Range ◽  
Liquid Mixture ◽  
Weak Interactions ◽  
Adiabatic Compressibility ◽  
Liquid Mixtures ◽  
Binary Liquid Mixture ◽  
Binary Liquid ◽  
Different Temperatures ◽  
Excess Internal Pressure

The ultrasonic velocity, density and viscosity in binary liquid mixture cyclohexane witho-xylene have been determined at different temperatures from 303.15 to 318.15 K over the whole composition range. The data have been utilized to estimate the excess adiabatic compressibility (βE), excess volumes (VE), excess intermolecular free length (LfE), excess internal pressure (πE) and excess enthalpy (HE) at the above temperatures. The excess values have been found to be useful in estimating the strength of the interactions in the liquid mixtures. Analysis of these parameters indicates that there are weak interactions among the components of the binary mixtures.

scholarly journals Theoretical Evaluation of Ultrasonic Velocity in Binary Liquid Mixtures of Alcohols [S] + Benzene

2013 ◽  
Vol 7 ◽  
pp. 18-35 ◽  
Author(s):  
N. Santhi ◽  
P.L. Sabarathinam ◽  
J. Madhumitha ◽  
G. Alamelumangai ◽  
M. Emayavaramban
Keyword(s):  
Ultrasonic Velocity ◽  
Molecular Interaction ◽  
Composition Range ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Ultrasonic Velocities ◽  
Theoretical Evaluation ◽  
Binary Liquid ◽  
Experimental Values ◽  
Molecular Interaction Parameter

Ultrasonic velocities and densities of the binary liquid mixtures of benzene with 1-propanol, 2-propanol, 1-butanol, 2-butanol and 3-butanol at 303.15 to 318.15 K, over the entire composition range were measured. The theoretical values of ultrasonic velocity were evaluated using the Nomoto’s Relation (NR), Ideal Mixture Relation (IMR), Free Length Theory (FLT) and Collision Factor Theory (CFT). The validity of these relations and theories were tested by comparing the computed sound velocities with experimental values. Further, the molecular interaction parameter (α) was computed by using the experimental and the theoretical ultrasonic velocity values. The variation of this parameter with composition of the mixtures has been discussed in terms of molecular interaction in these mixtures.

scholarly journals Molecular Interaction Studies in Binary Liquid Mixtures from Ultrasonic Data

2010 ◽  
Vol 7 (2) ◽  
pp. 648-654 ◽  
Author(s):  
N. Santhi ◽  
PL. Sabarathinam ◽  
M. Emayavaramban C. Gopi ◽  
C. Manivannan
Keyword(s):  
Ultrasonic Velocity ◽  
Interaction Parameter ◽  
Molecular Interaction ◽  
Composition Range ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Ultrasonic Velocities ◽  
Binary Liquid ◽  
Experimental Values ◽  
Molecular Interaction Parameter

Ultrasonic velocities and densities of the binary liquid mixtures of dimethy1 sulphoxide (DMSO) with phenol,o-cresol,m-cresol,p-cresol andp-chlorophenol at 318.15 K, over the entire composition range were measured. The theoretical values of ultrasonic velocity were evaluated using the Nomoto’s Relation (NR), Ideal Mixture Relation (IMR), Free Length Theory (FT) and Collision Factor Theory (FLT). The validity of these relations and theories was tested by comparing the computed sound velocities with experimental values. Further, the molecular interaction parameter (α) was computed by using the experimental and the theoretical ultrasonic velocity values. The variation of this parameter with composition of the mixtures has been discussed in terms of molecular interaction in these mixtures.

scholarly journals A Comparative Study of Experimental and Theoretical Ultrasonic Velocity of Binary Liquid Mixtures Using Mathematical Methods

2018 ◽  
Vol 7 (4.10) ◽  
pp. 602
Author(s):  
A. Gayathri ◽  
T. Venugopal ◽  
K. Venkatramanan
Keyword(s):  
Comparative Study ◽  
Ultrasonic Velocity ◽  
Liquid Mixtures ◽  
Industrial Applications ◽  
Binary Liquid Mixtures ◽  
Ultrasonic Velocities ◽  
Mathematical Methods ◽  
Binary Liquid ◽  
Mathematical Equations ◽  
Experimental Values

A comparative study of ultrasonic velocities of binary liquid mixtures such as O-cresol+carbon tetrachloride, anisicaldehyde+methylacetate, anisicaldehyde+ethylacetate, having industrial applications are analysed at temperature 303K for different concentrations [0 to 1%]. In the present study experimental values are taken from literature and there values are compared with theoretical values obtained by various mathematical equations such as Nomoto’s relation, VandealVangeal formula, Impedance relation, Rao’s specific relation. Thus, the present study reveals the nature of interaction between component molecules in the mixtures and enables us to identify a suitable mathematical model for predicting the ultrasonic velocity various binary liquid mixtures.    

scholarly journals 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

2013 ◽  
Vol 18 ◽  
pp. 1-7
Author(s):  
C.H. Srinivasu ◽  
K. Anil Kumar ◽  
S.K. Fakruddin ◽  
K. Narendra ◽  
T. Anjaneyulu
Keyword(s):  
Experimental Data ◽  
Molecular Interactions ◽  
Acoustic Impedance ◽  
Entire Range ◽  
Liquid Mixture ◽  
Adiabatic Compressibility ◽  
Binary Liquid Mixture ◽  
Acoustical Parameters ◽  
Binary Liquid ◽  
Different Temperatures

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.

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