Absolute rate constant& k, of the reaction OH + HN03 were determined using a puked laser photolyskresonance ab\_ sorption technique\_ The measured value in cm3 mol-' s-l at 230. lolo k(l-16 Torr HN03) = 7.57 + 0.64. k(S00 Torr N2) = 7.20 f 0.66 and k(600 Torr SFe) = 8.37 f 0.45. indimtc that any pre
The question of a pressure effect in the reaction OH + CO at room temperature
β Scribed by Ralph Overend; George Paraskevopoulos
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 306 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
β¦ Synopsis
Absolute rate constants for the rcaction of OH with CO were determined at 296 + 2 K, with 50 torr of Hc and 0-350 tOrr Of SF6. Thc rate constant was found to change from = 1.0 x lol1 to = 1.9 x lol1 cm3 mol-l s-' depcndmo on thc pressure and nature of the third body M, in agreement with our earlicr results and with the threc studies by Heicklcn, Co, Calvert, and their co-workers. However, it is not possible, at present, to attribute thc effect with certamty to any particular cause.
π SIMILAR VOLUMES
The effect of pressure on the rate constant of the OH + CO reaction has been measured for Ar, N,, and SF, over the pressure range 200-730 torr. All experiments were at room temperature. The method involved laser-induced fluorescence to measure steady-state OH concentrations in the 184.9 nm photolysi
Discharge-Bow kinetic studies using NO1 chemiluminescence detection of 0 yielded a rate constant for OtSizHs of (6.Ok 1.0) x lo-r2 cm3 s-' at 295 K, where the 95% confidence interval includes both precision and accuracy. Insertion and abstraction mechanisms are discussed, and on the assumption that
## Abstract The temperature and pressure dependence of the reaction of OH + CO has been modeled using the (energyβresolved) master equation and RRKM theory. These calculations are based on the coupledβcluster potential energy surface of Yu and coβworkers (Chem Phys Lett 349, 547β554, 2001). As is w