Studies on thermo-acoustic parameters of poly(ethylene glycol)- 400 at different temperatures

被引：0
作者：
F. M. Sannaningannavar
B. S. Navati
N. H. Ayachit
机构：
[1] Karnatak Science College,Department of Physics
[2] BVB College of Engineering and Technology,Department of Physics
来源：
Journal of Thermal Analysis and Calorimetry | 2013年 / 112卷
关键词：
Thermo-acoustic parameters; Ultrasonic velocity; Isentropic compressibility; Intermolecular free length; Acoustic impedance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The ultrasonic velocity and density have been measured at different temperatures between 299 and 363 K for the pure liquid sample, poly(ethylene glycol) with average molecular mass 400 g mol−1 (PEG 400). From these, isentropic compressibility (β), intermolecular free length (Lf), acoustic impedance (Z), molar volume (Vm), Schaff’s available volume Va(s), molar sound velocity (Ra), and molar compressibility (W) have been evaluated. The variations of these parameters with the temperature of the sample have been studied. Data so obtained are employed to compute other thermodynamic parameters. Variations in various parameters with respect to temperature are discussed in the light of the results obtained.
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页码：1573 / 1578
页数：5
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