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Measurements of HmE and VmE for (propane  +  sulphurhexafluoride) in the near critical region

✍ Scribed by C.J. Wormald; A.P. du’Gay

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
424 KB
Volume
34
Category
Article
ISSN
0021-9614

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✦ Synopsis

A flow mixing calorimeter followed by a vibrating-tube densimeter has been used to measure excess molar enthalpies H E m and excess molar volumes V E m of {xC 3 H 8 + (1 -x)SF 6 }. Measurements over a range of mole fractions x have been made at the pressure p = 4.30 MPa at eight temperatures in the range T = 314.56 K to 373.91 K, in the liquid region at p = 3.75 MPa and T = 314.56 K, in the two phase region at p = 3.91 MPa and T = 328.18 K, and in the supercritical region at p = 5.0 MPa and T = 373.95 K. The measurements are compared with results from the Patel-Teja equation of state which reproduces the main features of the excess function curves as well as it does for similar measurements on {xCO 2 + (1 -x)C 2 H 6 }, {xCO 2 + (1 -x)C 2 H 4 } and {xCO 2 + (1 -x)SF 6 } reported previously.

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