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Concentration Dependence of Ultrasonic Velocity and Some Thermodynamic Properties in Ethyl Alcohol-water Mixtures

Liu Zhenqing(Institute of Acoustics,Tongji University, Shanghai 200092)  
Concentration dependence of ultrasonic velocity for the binary mixture system ethyl alcohol-water has been determined in the temperature range 5-55℃ using an automatic pulse-echo velocimeter. The principle of ultrasonic solution concentration determination is based on this dependence.Other parameters,such as adiabatic compressibility, intermolecular free length, excess molar volume,excess ultrasonic velocity, excess adiabatic compressibility and excess intermolecular free length have been computed in this paper. The extent and nature of molecular interaction among the solutiuons are discussed.
【Fund】: 国家教委博士点基金
【CateGory Index】: O422.1
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