Optoacoustic study of the NO2-N2O4 chemical system
β Scribed by M. Van Roozendael; M. Herman
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 485 KB
- Volume
- 166
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The equilibrium constant, K,, of the reaction NO2 + NO3 + M N z O ~ + M has been determined for a small range of temperatures around room temperature in air at 740 torr by direct spectroscopical measurements of NOz, NOS, and NzOs. At 298 K, K, was determined as (3.73 2 0.61) x lo-'' cm3 molecule-'.
The gas-phase reaction of the NOa radical with NO, was investigated, using a flash photolysis-visible absorption technique, over the total pressure range 25-400 Torr of nitrogen or oxygen diluent a t 298 2 2 K. The absolute rate constants determined (in units of em3 molecule-' s-') a t 25, 100, and
## Infrared absorptions of N.&(+) at CO laser frequencies were monirored as an NOZ/N204 sample was subjected to visible radiation from-au argon laser. Double resonance signals corresponding to a two-mole&e scheme involving the 2N0, =r N204 chemical equilibrium have been observed and interpreted.
The reactions of labeled NL5NOwith CO, NO, 02, "02, N,, NO2, and N,O have been investigated using a tandem ICR instrument. In each case the total rate coefficient, product distribution, and kinetic energy dependence were measured. The results indicate that very specific reaction mechanisms govern th
Mixtures of N,O, and N,O, have been prepared from measured volumes of NO and 0,. Phase relationships in the system N,O,/N,O,, which depend on the composition of the samples and on the temperature, were studied by the Guinier technique and differential thermal analysis. Single crystals of phases A an