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The excess molar enthalpy of (benzene, or cyclohexane + tetrachloromethane)(g), and (benzene, or cyclohexane + chloromethane)(g) from temperatures 353.2 K to 423.2 K

✍ Scribed by A.P. Parker; F. Rieger; P.W. Johnson; C.J. Wormald

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
173 KB
Volume
30
Category
Article
ISSN
0021-9614

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✦ Synopsis

cyclohexane q tetrachloromethane g and benzene q tetrachloromethane g at standard atmospheric pressure over the temperature range 353.2 K to 423.2 K. The non-ideality of the cyclohexane, benzene, and tetrachloromethane was fitted using the Kihara potential. Cross-Ž . Ž . 1 r 2 terms were calculated using the equation s 1 y k , and to fit the 12 12 11 22 12 using a quasi-chemical model which, for benzene᎐chloromethane association, yielded a value Ž . y 1 of the equilibrium constant K 298.15 K s 0.179 MPa and an enthalpy of association 12 . y1 Ž . ⌬H sy 7.17 " 2 kJ mol . ᮊ 1998 Academic Press 12 KEYWORDS: excess enthalpy; second virial coefficient; gas mixture E 9.61 10 Cm †, 9.14 10 Cm, and 3.87 10 Cm, respectively. Values of H m Ž

. for cyclohexane q polar fluid could all be fitted using Kihara, or Stockmayer †Editorial comment: molecular dipole moments are often expressed in the non-SI unit debye D, . y3 0 where D f 3.33564 10 Cm.

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