scholarly journals Excess Molar Volumes, Intermolecular Free Lengths, Adiabatic Compressibilities and Acoustic Impedance of Binary Mixtures of Anisole, Toluene and Ethylbenzene with Dioxane at Different Temperatures

2014 ◽  
Vol 42 ◽  
pp. 72-83 ◽  
Author(s):  
S.L. Dahire ◽  
Y.C. Morey ◽  
P.S. Agrawal
Keyword(s):  
Experimental Data ◽  
Acoustic Impedance ◽  
Composition Range ◽  
Adiabatic Compressibility ◽  
Excess Molar Volumes ◽  
Polynomial Equation ◽  
Liquid Mixtures ◽  
Binary Liquid ◽  
Intermolecular Free Length ◽  
Different Temperatures

The present study reports densities (ρ), viscosities (η) and ultrasonic speeds (U) of pure dioxane (DOX), anisole (ANS), toluene (TOL) and ethylbenzene (ETB) and their binary liquid mixtures over the entire composition range at 293, 298, 303, 308 and 313 K. From the experimental data excess molar volume (VmE), excess intermolecular free length (LfE), excess adiabatic compressibility (βE) and excess acoustic impedance (ZE) have been computed. The excess values were correlated using Redlitch-Kister polynomial equation to obtain their coefficients and standard deviations (σ). With increase in temperature, the binary mixture of DOX+ANS shows larger deviations in βE, LfE and smaller deviations in ZE, VmE. These results suggest that ANS has strong molecular interactions with DOX than ETB and TOL.

scholarly journals Study on Thermodynamic Properties of Binary Mixtures of Diethyl Carbonate with Benzonitrile, Benzaldehyde at Different Temperatures

2014 ◽  
Vol 38 ◽  
pp. 1-7 ◽  
Author(s):  
B. Sudhamsa ◽  
M. Sarath Babu ◽  
K. Narendra
Keyword(s):  
Thermodynamic Properties ◽  
Speed Of Sound ◽  
Composition Range ◽  
Liquid Mixture ◽  
Adiabatic Compressibility ◽  
Liquid Mixtures ◽  
Diethyl Carbonate ◽  
Binary Liquid ◽  
Intermolecular Free Length ◽  
Different Temperatures

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 (LfE), 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.

scholarly journals Excess Transport Properties of Binary Mixtures of Quinoline with Xylenes at Different Temperatures

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Sk. Fakruddin ◽  
Ch. Srinivasu ◽  
B. R. Venkateswara Rao ◽  
K. Narendra
Keyword(s):  
Ultrasonic Velocity ◽  
Acoustic Impedance ◽  
Adiabatic Compressibility ◽  
Polynomial Equation ◽  
Liquid Mixtures ◽  
Excess Functions ◽  
Free Length ◽  
Intermolecular Free Length ◽  
Excess Parameters ◽  
Different Temperatures

The ultrasonic velocity and density of binary liquid mixtures of quinoline with o-xylene, m-xylene, and p-xylene have been measured over the entire range of composition at = 303.15, 308.15, 313.15, and 318.15 K. Using these data, various parameters like adiabatic compressibility (β), intermolecular free length (), and acoustic impedance () and some excess parameters like excess adiabatic compressibility (), excess intermolecular free length (), excess acoustic impedance (), and excess ultrasonic velocity () have been calculated for all the three mixtures. The calculated deviations and excess functions have been fitted to Redlich-Kister polynomial equation. The observed deviations have been explained on the basis of the intermolecular interactions present in these 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.

Acoustical Studies on CuO – Diethyl Amine + Isopropanol Binary Nanofluids at Various Temperatures

2015 ◽  
Vol 1086 ◽  
pp. 107-110
Author(s):  
B. Rohini ◽  
Solomon Jeevaraj A. Kingson
Keyword(s):  
Experimental Data ◽  
Acoustic Impedance ◽  
Liquid Mixtures ◽  
Acoustical Parameters ◽  
Free Length ◽  
Binary Liquid ◽  
Diethyl Amine ◽  
Ultrasonic Sound ◽  
Different Temperatures ◽  
Ultrasonic Parameters

Ultrasonic parameters of CuO: Diethylamine-Isopropaonol binary nanofluids at six different concentrations have been reported at three different temperatures like 298K, 308K and 318K. The acoustical parameters such as Ultrasonic sound velocity (v), Compressibility (β), Inter molecular free length (Lf), Acoustic impedance (Z) are calculated from experimental data. The variation of these parameters with composition of the mixture helps us in understanding the nature and extent of interaction between particles and the binary liquid mixtures.KeywordsUltrasonic velocity, Compressibility, Acoustic impedance, Inter molecular free length, Nanofluids

Study of Molecular Interactions in Binary Liquid Mixtures Containing Ethyl (Z)-Octadec-9-Enoate and o-Toludine

2015 ◽  
Vol 54 ◽  
pp. 98-103
Author(s):  
D. Chinnarao ◽  
M. Sri Latha ◽  
K. Raja ◽  
Ch.V. Padmarao
Keyword(s):  
Speed Of Sound ◽  
Atmospheric Pressure ◽  
Composition Range ◽  
Liquid Mixture ◽  
Adiabatic Compressibility ◽  
Liquid Mixtures ◽  
Structural Effects ◽  
Binary Liquid ◽  
Intermolecular Free Length ◽  
Derived Properties

Density, speed of sound and viscosity have been measured for binary liquid mixture containing Ethyloleate+o-toludine over the entire composition range at temperatures 303.15, 308.15, 313.15 and 318.15 K and at atmospheric pressure. By using these values various parameters like adiabatic compressibility (βad), free volume (Vf), intermolecular free length (Lf), internal pressure (π) and their excess values have been calculated. The intermolecular interactions and structural effects are analyzed on the basis of the measured and derived properties.

Measurements and Theoretical Analysis of Excess Molar Volumes for Binary Mixtures of Dimethyl Sulfoxide with Xylenes

2008 ◽  
Vol 59 (10) ◽  
Author(s):  
Oana Ciocirlan ◽  
Olga Iulian
Keyword(s):  
Experimental Data ◽  
Theoretical Analysis ◽  
Dimethyl Sulfoxide ◽  
Atmospheric Pressure ◽  
Composition Range ◽  
Excess Molar Volumes ◽  
Liquid Mixtures ◽  
Molar Volumes ◽  
Binary Liquid ◽  
Good Agreement

Excess molar volumes, VE, have been measured for binary liquid mixtures of dimethyl sulfoxide (DMSO) with xylenes (o- xylene, m- xylene and p-xylene) at 298.15 K and atmospheric pressure. The excess volumes values were found negative over the entire composition range for all the mixtures. The VE values increase in order: p-xylene[ m-xylene[ o-xylene. The Flory and Prigogine-Flory-Patterson (PFP) thermodynamic theories of solution have been used to analyze the VE data. The calculated VE values were found to be in good agreement with the experimental data.

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 Research on Ion-Solvent Interactions in the Inorganic Liquid Mixtures by Ultrasonic Technique

2019 ◽  
Vol 8 (6S) ◽  
pp. 151-159 ◽  
Keyword(s):  
Molar Volume ◽  
Acoustic Impedance ◽  
Liquid Mixture ◽  
Adiabatic Compressibility ◽  
Liquid Mixtures ◽  
Ultrasonic Speed ◽  
Solvent Interactions ◽  
Free Length ◽  
Binary Liquid ◽  
Intermolecular Free Length

Ultrasonic speed, density and viscosity of binary liquid mixtures of aqueous ammonium per sulphate with other sulphate solutions at 303.15 K have been measured. From these experimental data, the adiabatic compressibility, intermolecular free length, internal pressure, acoustic impedance, relaxation time, molar volume, classical absorption coefficient and surface tension have been computed. The excess viscosity, excess compressibility, excess intermolecular free length, excess acoustic impedance and excess molar volume values are evaluated to find the nature and the extent of the interactions between the constituent molecules of the liquid mixture systems

THERMO PHYSICAL PROPERTIES OF TERNARY MIXTURES OF 1-HEXANOL/1- OCTANOL CONTAINING N-N-DIMETHYLFORMAMIDE AND TOLUENE AT 303.15 K

2021 ◽  
pp. 41-43
Author(s):  
T. Sumathi
Keyword(s):  
Experimental Data ◽  
Molecular Interactions ◽  
Acoustic Impedance ◽  
Composition Range ◽  
Adiabatic Compressibility ◽  
Ternary Mixtures ◽  
Acoustical Parameters ◽  
Free Length ◽  
Intermolecular Free Length ◽  
Thermo Physical Properties

In the present work, ultrasonic velocity (u), viscosity (η) and density (ρ) of ternary mixtures of 1-hexonal and 1-octanol with dimethylformamide in toluene at 303.15 K have been measured over the entire composition range. From the experimental data, acoustical parameters such as adiabatic compressibility (β), intermolecular free length (L ), free volume (V ), acoustic impedance (Z), excess adiabatic compressibility , excess free length , excess free f f E E (b ) (L )f volume and excess acoustic impedance have been computed. The variation of these properties with composition are E E (V ) (Z ) f discussed in terms of molecular interactions between unlike molecules of the mixtures.

scholarly journals Thermodynamic Interactions of P-Chlorotoluene with P-Xylene at 303.15 K, 308.15 K, 313.15 K and 318.15 K

2015 ◽  
Vol 52 ◽  
pp. 53-62
Author(s):  
G. Pavan Kumar ◽  
Ch. Praveen Babu ◽  
K. Samatha
Keyword(s):  
Internal Pressure ◽  
Molar Volume ◽  
Composition Range ◽  
Adiabatic Compressibility ◽  
Liquid Mixtures ◽  
Acoustical Parameters ◽  
Binary Liquid ◽  
Intermolecular Free Length ◽  
Dipole Interactions ◽  
Induced Dipole

Ultrasonic velocity, density and viscosity of the binary liquid mixtures of P-Chlorotoluene with p-xylene over the whole composition range at 303.15, 308.15, 313.15 and 315.15 K at frequency 2 MHz have been measured. Acoustical parameters such as adiabatic compressibility, intermolecular free length, impedance, molar volume, internal pressure, free volume, Rao constant and Wada constant. The acoustical parameters can be used to assess the strength of induced dipole-dipole interactions in this system studied.

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