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A study of ethane decomposition in a shock tube using laser absorption of CH 3
Author(s) -
Davidson D. F.,
Di Rosa M. D.,
Hanson R. K.,
Bowman C. T.
Publication year - 1993
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550251109
Subject(s) - chemistry , shock tube , decomposition , laser linewidth , analytical chemistry (journal) , radical , shock wave , absorption (acoustics) , laser , absorption spectroscopy , attenuation coefficient , thermodynamics , optics , organic chemistry , physics
The rate coefficient for the unimolecular reaction, C 2 H 6 → CH 3 + CH 3 , was measured in reflected shock wave experiments using narrow‐linewidth laser absorption of methyl radicals at 216.6 nm. The experiments were conducted in the falloff regime at the conditions 1350 to 2110 K, 0.58 to 4.4 atm, in 50 to 500 ppm C 2 H 6 /Ar and 190 ppm C 2 H 6 /N 2 mixtures. At temperatures below 1500 K, the measured rate coefficients are in good agreement with the expression of Wagner and Wardlaw (1989). Above 1500 K, the measurements fall increasingly below their predictions. © 1993 John Wiley & Sons, Inc.