LAUSR

Abstract Density, speed of sound and viscosity for varying concentrations of 3,3-(phenylmethylene)bis(4-hydroxy-2H-chromen-2-one) in DMSO and solvent media containing (5, 10, 15, 20, 25)% w/w of ethanol in DMSO have been measured. These properties have been deliberated over a wide range of temperatures ranging from 288.15 K to 313.15 K and at p = 0.1 MPa. From the experimental data, different derived parameters like apparent molar volume (Vϕ), limiting apparent molar volume (V0ϕ), apparent molar isentropic compression (Kϕ,s), limiting apparent isentropic compression (K0ϕ,s), transfer volumes, limiting apparent molar expansibility (E0ϕ), coefficient of thermal expansion (α), Hepler's constant, viscosity coefficients (A and B), viscosity B-coefficient of transfer and dB/dT values have been determined. Further, the results have been expounded in terms of solute-solute and solute-solvent interactions and structure-making ability of solute molecules in different solvent systems of study.