THERMOPHYSICAL PROPERTIES OF GASEOUS REFRIGERANTS FROM SPEED-OF-SOUND MEASUREMENTS .2. RESULTS FOR 1,1-DICHLORO-1-FLUOROETHANE (CCL2FCH3)

被引：25

作者：

GOODWIN, ARH

MOLDOVER, MR

机构：

[1] Thermophysics Division, National Institute of Standards and Technology, Gaithersburg

来源：

JOURNAL OF CHEMICAL PHYSICS | 1991年 / 95卷 / 07期

关键词：

D O I：

10.1063/1.461694

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The speed of sound in gaseous 1,1-dichloro-1-fluoroethane (CCl2FCH3, commonly known as R141b) has been measured between 260 and 315 K. Perfect-gas heat capacities and second acoustic virial coefficients have been calculated from the results. The second acoustic virial coefficients are used to estimate the density virial coefficients B(T) and an effective square-well potential. Our estimates of B(T) are consistent with B(T) deduced from high-quality p(V(m), T) results. We provided estimates of the vibrational relaxation time for R141b.

引用

页码：5230 / 5235

页数：6

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