The decomposition of ethane sensitized by isopropgl radicals was studied in the tempera- The rate of formation of n-butane, isopentane, and 2,S-dimethyl-t,iire range of 496-548°K. butane were nieasrued. The expression kI/PZ1'\* was found to be log kl/kg"2(dm3'\*/n~ol"2 . see1!\*) = (3.2 f 0.4) -(54
Kinetics of some reactions of vinyl and isopropyl radicals in the gas phase
✍ Scribed by Lajos Szirovicza
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 539 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0538-8066
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✦ Synopsis
Vinyl and isopropyl radicals were generated by the pyrolysis of azoisopropane in the presence of acrolein at 473-563 K. Reaction products were analyzed by gas chromatography. Rate constant ratios k , / k , = 0.02 lr 0.01 and k 4 / k 3 : 0.01 f 0.005 are suggested for the following reactions:
(1)
The rate constant ratio of reactions ( 7) and (c) obeys the Arrhenius equation k 7 / k f " = (1.02 5 0.7)107exp[ -(28.42 f 2.97)kJ/RT] dm ,'* mol-"* s-"' (CH,),CHN=NCH(CH,), + C,H,. .--f CzH4 + (CH,),C-N=NCH(CH,), (8) (9) CzH3CH0 + C,H,. + C,H4 + C,H,CO. The Arrhenius equation was derived for (k, + k , )
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