• J D Pandey

Articles written in Journal of Chemical Sciences

• Viscosity and density of binary electrolytes in aqueous solutions

Viscosities and densities of binary electrolytic solutions at different compositions have been measured at 298.15K. Values of apparent molal volume, (ϕv), relative viscosity, (ηre1) and free energy of activation, (Δμ0≠) have been deduced from density and viscosity data. Results show that there are short range and weak interactions in these binary systems.

• Ultrasonic studies of interactions in ternary solutions containing sorbitol and sodium carboxylate solution at 308 K

Ultrasonic velocities and densities of sorbitol in aqueous alkali carboxylate solutions of different concentrations: 0.5 M, 1.0 M and 1.5 M at 308 K have been measured. Adiabatic compressibility,βs; apparent molar volume, Φv, apparent molar compressibility,$$\Phi _{\beta _s }$$, and hydration number, Hn were deduced from their measured data. Results show that there are short range weak interactions.

• Surface tension and ultrasonic velocity of binary liquid mixtures at 298.15 K

Using the Brock and Bird relation and the Flory statistical theory, the surface tension of five binary mixtures of 1,1,2,2-tetrachloroethane with benzene, toluene,p-xylene, acetone and cyclohexane have been evaluated at 298.15 K. The values of surface tension thus obtained have been utilized to compute ultrasonic velocity via the Auerbach relation. Theoretical values have been compared with experimental data and deviations in the ultrasonic velocity have been interpreted in terms of intermolecular interactions.

• Thermochemical and sonochemical studies of adenosine-H2O-DMSO-Ca2+/K+ systems

Ultrasonic, volumetric and viscometric investigations have been conducted on adenosine base at three different temperatures 303·15, 308·15 and 313·15 K. The partial molal volume φv0, partial molal compressibility φk0, the viscosity coefficientB of the Jones-Dole equation and the solute activation parameters ΔU, ΔS and ΔH have been calculated. An attempt has been made to explain the changes in water structure when a co-solvent is added. Further, the results of viscosity experiments are tested in terms of transition state theory.

• # Journal of Chemical Sciences

Volume 134, 2022
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019