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Excess molar volumes of the (cyclohexane + pentane, or hexane, or heptane, or octane, or nonane) systems at the temperature 298.15 K

✍ Scribed by J. Balán; L. Morávková; J. Linek

Book ID
111491093
Publisher
Versita
Year
2007
Tongue
English
Weight
167 KB
Volume
61
Category
Article
ISSN
0366-6352

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✦ Synopsis

Abstract

The densities of the (cyclohexane + pentane, or hexane, or heptane, or octane, or nonane) systems were measured at the temperature 298.15 K by means of a vibrating-tube densimeter. Their respective excess molar volumes were calculated and correlated using the fourth-order Redlich—Kister equation, with the maximum likelihood principle being applied in the determination of the adjustable parameters. The values of excess molar volumes were negative for the cyclohexane + pentane system, whereas they were positive for the other systems with the values increasing with the number of carbon atoms in the respective alkane molecules.

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✍ M. Artal; J. Muñoz Embid; I. Velasco; S. Toı́n 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 340 KB

Excess molar volumes V E m of [x(BrCH2Cl or BrCH2CH2Cl) + (1x){CH3(CH2)5CH3 or c-(CH2)6 or C6H6 or CCl4}] have been determined from density measurements at the temperature 298.15 K, using a vibrating-tube densimeter. Excess molar volumes V E m for these mixtures are positive, but noticeably less pos