Estimation of molecular radius of liquids and liquid mixtures from sound velocity

Thermal Expansivity of Ternary Liquid Mixtures: Application of Hard-Sphere Models and Flory's Statistical Theory

“…The values of thermal expansivity using the Flory theory and experimental values are found to increase with increasing temperature. Similar results were obtained by Pandey et al [25]. It is observed from Tables II and III that …”

“…On the basis of seven hard-sphere models, thermal expansion coefficient of the liquid mixtures can be calculated theoretically by using the rigid-sphere equation of state as [21,25]: Thiele-Lebowitz model (TL):…”

Estimation of thermodynamic parameters in 3.Om and 3O.Om liquid crystalline compounds

“…Moreover, the Bayer's nonlinearity parameter (B/A) provides [2] information regarding physical attributes of a material such as internal pressure, intermolecular spacing and acoustic scattering. Thus, the evaluation of these parameters in pure liquids and liquid mixtures has gained much interest from past decade [3][4][5][6][7]. In view of their importance, as a part of our systematic studies, in the present paper we made an attempt to extend the studies to the liquid crystalline compounds N-(p-n-propyl/ propyloxybenzylidene)-p-n-alkoxy anilines, 3.Om and 3O.Om with m = 6, 7 and 8 which exhibit nematic phase with different nematic thermal ranges.…”

Ultrasonic study of adsorption in disaccharide (maltose) metabolism

“…The magnitude of density as well as velocity of sound in human body fluids or its constituents is of vital importance for carrying out acoustical analysis of human system or organs [4][5][6][7], as a sudden excess or reduction of sound velocity indicates abnormality [8,9]. In order to obtain more information on the properties of liquid mixtures, it is necessary to calculate certain acoustical parameters.…”