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Excess enthalpies and excess volumes for (ethane + propan-1-ol) at the temperatures (298.15, 323.15, and 348.15) K and at the pressures (5, 10, 12.5, and 15) MPa

โœ Scribed by J.B. Ott; L.R. Lemon; J.T. Sipowska; P.R. Brown

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
571 KB
Volume
27
Category
Article
ISSN
0021-9614

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โœฆ Synopsis

Excess molar enthalpies H E m and excess molar volumes V E m have been determined for {xC2H6+(1-x)CH3(CH2)2OH} at T= (298.15, 323.15, and 348.15) K and p=(5, 10, 12.5, and 15) MPa. The H E m s were measured with a high-temperature high-pressure flow calorimeter. The V E m s were measured simultaneously with a vibrating-tube densitometer inserted in the flow line of the calorimeter past the mixing chamber. (Vapor+liquid) equilibrium is present at p=5 MPa and T= (323.15 K and 348.15 K). The value of the pressure coefficient (1H E m /1p)T , which is large at all three temperatures, is calculated from V E m and (1V E m /1T )p . The results are in good agreement with the values obtained directly from the change in H E m with pressure.

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