Excess volumes and speeds of sound of N-methyl-2-pyrrolidone with chloroethanes and chloroethenes at 303.15 K

被引：31
|
作者：
Kumari, PG [1 ]
Radhamma, M [1 ]
Sekhar, GC [1 ]
Rao, MVP [1 ]
机构：
[1] Sri Venkateswara Univ, Dept Chem, Tirupati 517502, Andhra Pradesh, India
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2002年 / 47卷 / 03期
关键词：
D O I：
10.1021/je0102661
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Excess molar volumes (V-E) and the speed of sound (u) of binary mixtures of N-methyl-2-pyrrolidone with chloroethanes and ethenes have been measured at 303.15 K. The chloroethanes are 1,2-dichloroethane, 1,1,1-trichloroethane, and 1,1,2,2-tetrachloroethane. The chloroethenes are trichloroethene and tetrachloroethene. The speed of sound data were used to compute isentropic compressibilities (kappa(s)) and excess isentropic compressibilities (kappa(s)(E)). V-E values are negative over the entire mole fraction range. The kappa(s) values are negative over the whole volume fraction range for the systems of N-methyl-2-pyrrolidone with 1,1,1-trichloroethane, 1, 1,2,2-tetrachloroethane, and tetrachloroethene and positive for the systems of N-methyl-2-pyrrolidone with 1,2-dichloroethane and trichloroethene.
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页码：425 / 427
页数：3
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