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IJPAP Vol.47(11) [November 2009] >


Title: Ultrasonic and theoretical studies of some ternary liquid mixtures at various temperatures
Authors: Sumathi, T
Maheswari, J Uma
Keywords: Ternary liquid mixtures
Alkanols
Ultrasonics
Adiabatic compressibility
Collision factor theory
Issue Date: Nov-2009
Publisher: CSIR
Abstract: Various acoustical parameters such as adiabatic compressibility (), free length (Lf), free volume (Vf), internal pressure (i), excess adiabatic compressibility (E), excess free length (LfE), excess free volume (VfE), excess internal pressure (iE), excess viscosity (E) and excess velocity (UE) have been evaluated from density, viscosity and speeds of sound measurements for solvent systems consisting of methyl acetate and toluene with 1-pentanol, 1-hexanol and 1-heptanol at 303.15, 308.15 and 313.15 K. These excess properties have been used to discuss the presence of significant interactions between the component molecules in the ternary mixtures. The ultrasonic speeds calculated according to Nomoto‚Äôs relation, impedance dependence relation and collision factor theory are compared with those obtained experimentally.
Page(s): 782-786
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.47(11) [November 2009]

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