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Excess enthalpies and excess volumes for (butane + ethanol) at the temperatures (298.15, 323.15, and 348.15) K and the pressures (5, 10, and 15) MPa

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

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
463 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 {xCH3(CH2)2CH3+(1-x)CH3CH2OH} at the temperatures (298.15, 323.15, and 348.15) K and at the pressures (5, 10, and 15) MPa. Large and positive H E m and C E p, m are explained in terms of chemical, physical, and structural effects. The small (1H E m /1p)T , which changes sign from positive to negative with increasing x, is explained by a small V E m , which changes from negative to positive as x increases.

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Excess molar enthalpies H E m and excess molar volumes V E m have been determined for (butane+propan-1-ol) at temperatures (298.15, 323.15, and 348.15) K and at pressures (5, 10, and 15) MPa. The H E m results and the excess molar heat capacity C E p,m are positive, while V E m (x) is s-shaped, chan