Could molar heat capacity be derived from chromatographic data?

• Autorzy: Ciążyńska-Halarewicz K. , Kowalska T.
• Języki publikacji: EN

Abstrakty

EN

This paper, the latest in an established series on the alternative use of gas chromatographic data, is devoted to a possibility of deriving yet ano-ther thermodynamic magnitude from these data, the molar heat capacity, Cp. Traditionally, the molar heat capacity of a substance can be obtained directly by use of calorimeter [1]. Occasionally, however (e.g. when suffi-cient material is not available), this method can prove quite complicated. The question has thus been asked whether there are alternative possibilities of indirect measurement of this particular magnitude. In the work discussed in this paper we undertook this challenge by making an attempt to deter-mine molar heat capacities for the three classes of compound, alkylbenze-nes, aldehydes, and ketones, from simple chromatographic data originating from the capillary gas chromatography (CGC) and a set of specially devised mathematical models, complemented with appropriate statistical procedu-res.

• Wydawca: University of Silesia in Katowice ; Akademiai Kiado
• Czasopismo: Acta Chromatographica
• Rocznik: 2006
• Tom: No. 16
• Strony: 119--139
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Ciążyńska-Halarewicz K.

autor

Kowalska T.

• Institute of Chemistry, Silesian University, 9 Szkolna Street, 40-006 Katowice, Poland

Bibliografia

• [1] W. Wagner: Chemische Thermodynamik, Akademie-Verlag, Berlin, 1982, pp. 63–77
• [2] K. Ciążyńska-Halarewicz and T. Kowalska, J. Chromatogr. Sci., 41, 467 (2003)
• [3] K. Ciążyńska-Halarewicz and T. Kowalska, Acta Chromatogr., 13, 81 (2003)
• [4] K. Ciążyńska-Halarewicz and T. Kowalska, Acta Chromatogr., 15, 97 (2005)
• [5] K. Ciążyńska-Halarewicz, E. Borucka, and T. Kowalska, Acta Chromatogr., 12, 49 (2002)
• [6] T. Kowalska, Acta Chromatogr., 11, 7 (2001)
• [7] Poradnik fizykochemiczny, WNT, Warszawa, 1974
• [8] K. Héberger and M. Görgényi, J. Chromatogr. Sci, 39, 113 (2001)
• [9] K. Héberger and T. Kowalska, Chromatographia, 44, 179 (1997)
• [10] K. Ciążyńska-Halarewicz, Selected means of physico-chemical description of the retention parameters in gas chromatography and their practical consequences, Katowice 2004 (PhD dissertation, Silesian University, Katowice, Poland)