Abstract
The densitiesρ and ultrasonic speeds u for the binary mixture of polyethylene glycol (PEG 200) and poly ethylene glycol 400 (PEG 400) with N, N dimethylacetamide (DMA) are measured over the entire mole fraction range and at temperatures 303.15, 313.15, and 323.15 K. From the experimental data, and excess molar volume, VmE, excess ultrasonic speed uE, excess isentropic compressibility κsE, Excess intermolecular free length LfE, excess acoustic impedance ZE and excess molar isentropic compressibility Ks,mE are evaluated. The partial molar properties and their excess properties are also determined. The solute-solvent interactions are also analyzed using FTIR spectra, recorded at the room temperature.
Published Version
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