Ultrasonic speed of sound and derived thermodynamic properties of liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa

被引：18

作者：

Pires, PF ^{[1
]}

Esperança, JMSS ^{[1
]}

Guedes, HJR ^{[1
]}

机构：

[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, Ctr Quim Fina & Biotecnol, Dept Quim, P-2825114 Caparica, Portugal

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2000年 / 45卷 / 03期

关键词：

D O I：

10.1021/je9902950

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This work reports experimental data of the speed of sound in liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa, measured with a pulse-echo method. The results are fitted with a rational approximant. Derived thermodynamic properties are calculated, combining our experimental data with density and isobaric heat capacity values published by other authors. The results were compared with the data available in the literature.

引用

页码：496 / 501

页数：6

共 11 条

[1]

*ASM, 1979, MET HDB

[2] MEASUREMENTS OF THE (T, P, RHO) BEHAVIOR OF 1,1,1,2,3,3,3-HEPTAFLUOROPROPANE (REFRIGERANT R227) IN THE LIQUID-PHASE [J].