Gas Phase Kinetics of the Reaction System of 2NO2--N2O4 and Simple Alcohols Between 293-358 K

• Autorzy: Wójcik-Pastuszka D. , Gola A. , Ratajczak E.
• Języki publikacji: EN

Abstrakty

EN

The reversible reactions between nitrogen dioxide and alcohols (CH3OH, CH3CH2OH, CH3CH2CH2OH, CH3CHOHCH3) have been studied in the gas phase, using the spectrophotometric method.RONO(R = CH3, CH3CH2, CH3CH2CH2, CH3CHCH3) were identified by UV spectra. The equilibrium constants as well as the bimolecular rate constants were determined by computer modeling, using the programme MINICHEM. We calculated the following values for the forward rate constants k3 av : (3.0_0.9)x10-18, (8.0+-2.4)X10-18, (5.4+-1.6)_10-18, (2.0+-0.6)x10-18 cm3 molec-1 s-1 and the equilibrium constants Kav: 100+-30, 40+-12, 109+-33, 39+-12 at 298 K for the reactions with methanol, ethanol, 1-propanol and 2-propanol, respectively. The temperature dependence of the rate constants and the equilibrium constants were studied and it allowed to obtain the activation energy for the forward and for the reverse reaction, as well as thermochemical parameters. The equilibrium constants and the rate constants suggest that symmetrical N2O4 is the reactive species.

Słowa kluczowe

EN

nitrogen dioxine; dinitrogen tetroxide; simple alcohols

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2005
• Tom: Vol. 79 / nr 8
• Strony: 1301--1313
• Opis fizyczny: Bibliogr. 31 poz., rys.

Twórcy

autor

Wójcik-Pastuszka D.

• Department of Physical Chemistry, Wrocław Medical University, Pl. Nankiera 1, 50-140 Wrocław, Poland

autor

Gola A.

• Department of Physical Chemistry, Wrocław Medical University, Pl. Nankiera 1, 50-140 Wrocław, Poland

autor

Ratajczak E.

• Department of Physical Chemistry, Wrocław Medical University, Pl. Nankiera 1, 50-140 Wrocław, Poland

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