Br-atom atomic resonance absorption spectrometry (ARAS) has been developed and applied to measure thermal decomposition rate constants for CF Br (ฯฉ Kr) : CF ฯฉ 3 3 over the temperature range, 1222-1624 K. The Br-atom curve-of-growth Br (ฯฉ Kr) (145 ฯฝ was determined using this reaction. For molecules c
Thermal decomposition of CH3I using I-atom absorption
โ Scribed by S. S. Kumaran; M.-C. Su; J. V. Michael
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 156 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0538-8066
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โฆ Synopsis
The recently developed I-atom atomic resonance absorption spectrometric (ARAS) technique has been used to study the thermal decomposition kinetics of CH 3 I over the temperature range, 1052 -1820 K. Measured rate constants for CH 3 I between 1052 and 1616 K are best expressed by k . Two unimolecular theoretical approaches were used to rationalize the data. The more extensive method, RRKM analysis, indicates that the dissociation rates are effectively second-order, i.e., the magnitude is 61 -82% of the low-pressure-limit rate constants over 1052 -1616 K and 102 -828 torr. With the known , the optimized RRKM fit to the ARAS data requires .
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