The reaction of O-atoms with cyanogen was studied behind reflected shock waves using mixtures of nitrous oxide and cyanogen dilute in argon (10/100, 15/150, and 30/300 ppm N20/ppm C2N2, with temperatures in the range 1780 \_< T ~ 2285K and pressures of about 1.9 bar. Generation of O-atoms was achiev
N-Atom measurements in high temperature C2N2/NO/Ar reaction systems
β Scribed by K. Natarajan; D. Woiki; P. Roth
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 141 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0538-8066
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β¦ Synopsis
N-atom concentration profiles were measured in highly diluted C 2 N 2 /NO/Ar reaction systems behind reflected shock waves at temperatures between 3050 K and 4430 K by applying atomic resonance absorption spectroscopy (ARAS). C 2 N 2 served as a thermal source for CN radical which react with both, NO and the subsequently formed N atoms. Computer simulations based on a simplified reaction mechanism revealed strong sensitivity of the measured N atoms to the elementary reactions: CN Ο© NO NCO Ο© N (R5)
π SIMILAR VOLUMES
Mixtures of NO and NO/H2 in Ar were shock-heated and photolyzed with an ArF excimer laser. Measurements in these experiments of N-atom profiles using atomic resonance absorption spectrophotometry (ARAS) permitted the determination of two rate coefficients. The rate coefficient for the reaction (R1)
In order to examine the solvating strength toward a cation species N: , the equilibria of clustering reactions N: (Ar).\_, + 2Ar=N: (Ar),+Ar were studied with a pulsed electron beam high-pressure mass spectrometer. the thermochemical stabilities of N$ ( Ar ), with n > 2 were determined. The bond ene
The reaction of C 2 radicals with NO was studied behind reflected shock waves in the temperature range The shock-induced pyrolysis of acetylene, highly 3150 K Υ T Υ 3950 K. diluted in argon, was used as a well defined source for C 2 radicals, which were detected by ring-dye-laser absorption spectro
The kinetics of the reaction of 0 atoms with NO2 was investigated in the temperature range 199-357 K. The value of the rate constant can be expressed by k, = (5.21 kO.50) x lo-'\* exp [(202\*27)lT] cm3 s-' (3~ error). At temperatures below 230 K, the formation of equilibrium concentrations of N204 a