The rate constant for the reaction BrO + NO -+ Br f NO2 has been determine4 over the tempemture range 230 I( to 425 K in a discharge flow system using a mass spectrometer as a detector\_ Results, expressed in the Arrhenius form kr = (7.11 5 0.23) X 10-t\* eup[(296 f 10)/T] cm3 s-t, are compared with
Rate coefficient for the reaction: Br+Br2O→Br2+BrO
✍ Scribed by James B. Burkholder
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 140 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0538-8066
No coin nor oath required. For personal study only.
✦ Synopsis
The room temperature rate coefficient for the reaction (3) Br ϩ Br O : Br ϩ BrO 2 2 has been measured using the technique of pulse-laser photolysis with long-path transient absorption detection of the BrO reaction product. A value of k ϭ (2.0 Ϯ 0.5) ϫ 3 was determined. The photolysis products of Br 2 O at were Ϫ10 3 Ϫ1 Ϫ1
10 cm molecule s 308 nm also examined.
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The rate constant for the Br + O3 -+ BrO + O2 reaction was measured by the discharge flow technique, employing resonance fluorescence detection of Br. Over the temperature range 248 to 418 K, in 1 to 3 torr of He, decays of Br in excess 0, yield the value k , = (3.28 -+ 0 . 40) x 10-'1e'~944'30''T c
The technique of her flash photolysis-resonance fhorescence has been employed to study the kinetics of the reaction OH + HI+ -Hz0 + Br over the temperature ranse 249-416 K\_ The rate conshnt is found to be independent of tcmpera-hue\_ A simple aberage of the results obtained at six temperatures give
The kinetics of the title reactions have been studied using the discharge-flow mass spectrometic method at 296 K and 1 torr of helium. The rate constant obtained for the forward reaction (1), using three different experimental approaches (kinetics of Br Br ϩ IBr : I ϩ Br 2 consumption in excess of
## Abstract Rate coefficients for the reactions of CH~3~ + Br~2~ (__k__~2~), CH~3~CO + Br~2~ (__k__~3~), and Cl + Br~2~ (__k__~5~) were measured using the laser‐pulsed photolysis method combined with detection of the product Br atoms using resonance fluorescence. For the reactions involving organic