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Excess Molar Volumes of (Octane + Benzene, or + Toluene, or + 1,3-Xylene, or 1,3,5-Trimethylbenzene) at Temperatures between (298.15 K and 328.15) K

  1. 1.
    0306211 - ÚCHP 2008 RIV GB eng J - Journal Article
    Morávková, Lenka - Linek, Jan
    Excess Molar Volumes of (Octane + Benzene, or + Toluene, or + 1,3-Xylene, or 1,3,5-Trimethylbenzene) at Temperatures between (298.15 K and 328.15) K.
    [Dodatkové molární objemy soustav oktan + benzen, nebo + toluen, nebo + 1,3-xylen, nebo + 1,3,5-trimethylbenzen při teplotách mezi (298.15 K a 328.15) K.]
    Journal of Chemical Thermodynamics. Roč. 40, č. 4 (2008), s. 671-676. ISSN 0021-9614. E-ISSN 1096-3626
    R&D Projects: GA ČR(CZ) GA104/06/0656
    Institutional research plan: CEZ:AV0Z40720504
    Keywords : octane * benzene * excess volume
    Subject RIV: CF - Physical ; Theoretical Chemistry
    Impact factor: 1.876, year: 2008 ; AIS: 0.62, rok: 2008

    The densities of (octane plus benzene, or toluene, or 1,3-xylene, or 1,3,5-trimethylbenzene) were measured at temperatures (298.15, 308.15, 318.15, and 328.15) K by means of a vibrating-tube densimeter. The excess molar volumes calculated from the density data provide the temperature dependence of in the temperature range of 298 K to 328 K. The results were correlated using the fourth-order Redlich-Kister equation, with the maximum likelihood principle being applied for the determination of the adjustable parameters. It was found that the values of are not very much dependent on temperature and in all cases decrease with the number of methyl groups on benzene ring of the alkylbenzene.

    Hustoty soustav oktan plus benzen, nebo plus toluen, nebo plus 1,3-xylen, nebo plus 1,3,5-trimethylbenzen byly měřeny při teplotách 298,15 K, 308,15 K, 318,15 K a 328,15 K pomocí vibračního densimetru. Dodatkové molární objemy vypočtené z těchto hustotních dat poskytují teplotní závislist v rozmezí 298 až 328 K. Výsledky byly korelovány Redlichovou-Kisterovou rovnicí čtvrtého řádu za použití metody maximální věrohodnosti.
    Permanent Link: http://hdl.handle.net/11104/0159302


     
     
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