Kinetic measurements on the system: 2NO2 = N2O4 at (224 ± 2) K using time-resolved infrared laser absorption
✍ Scribed by John Brunning; Michael J. Frost; Ian W. M. Smith
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 417 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0538-8066
No coin nor oath required. For personal study only.
✦ Synopsis
Direct kinetic measurements have been made on the reaction: 2N02 = N204. Equilibrium mixtures of NOz and Nz04 a t (224 f 2) K were perturbed by flash photolysis of a fraction of the N2O4. The rate of relaxation back to equilibrium was monitored by observing the transmittance of the 14P(ll) line from a cw CO laser selected to coincide with the ug band of Nz04 Measurements were made in the presence of 350-750 torr of He, N,, or CF,. Within this limited pressure range, the kinetics were consistent with third-order behavior with the following rate constants (cm3 molecule-' s-'): k o = (2.4 & 0.5) x [He]; (1.0 5 0.1) x [N,]; (1.8 2 0.3) x [CF,].