期刊
JOURNAL OF MATHEMATICAL CHEMISTRY
卷 58, 期 10, 页码 2291-2312出版社
SPRINGER
DOI: 10.1007/s10910-020-01181-8
关键词
Non-linearity parameter; Molecular properties; Formamide; 2-ME; 2-EE
资金
- University Grants Commission, New Delhi
Nonlinear ultrasound propagation of formamide with 2-methoxyethanol and 2-ethoxyethanol systems are examined over the entire miscibility range and five different temperatures (303.15 K <= T <= 323.15 K) using Hartmann, Ballou, Lu, Tong Dong, Beyer and Beyer-Tong Dong methods. The nonlinearity parameter, B/A values are compared using the aforementioned methods in both the binary systems. The isobaric temperature coefficient (partial derivative(u)/partial derivative(T))(P) and isothermal pressure coefficient of the ultrasound velocity (partial derivative u/partial derivative P)(T) are also calculated. An interconnection between nonlinear ultrasound parameter and the molecular properties e.g. internal pressure, cohesive energy density etc. is also discussed. The excess non-linearity parameter B/A(E) plays a key role in determining the extent of intermolecular interactions in binary liquid mixtures. Hence, nonlinear ultrasonic propagation helps in studying the static and dynamic molecular properties of the solvent systems.
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