|
KMID : 1059519920360050644
|
|
Journal of the Korean Chemical Society
1992 Volume.36 No. 5 p.644 ~ p.651
|
|
|
The Kientic Study of Ozone(O3) with Sulfur Trioxide(SO3) in the Gas Phase
|
|
Kwon Young-Sik
|
|
|
Abstract
|
|
|
|
The kinetics of the gas phase reaction of ozone(∼0.5 torr) with sulfur trioxide was investigated in the range of 6∼12 torr pressure at 69∼150℃. The reaction rate of ozone with sulfur trioxide was faster than the reaction rate of O3 in the presence of CO2 alone. No evidence for a molecular reaction of O3 with SO3 was found and the faster rate is probably due to impurity (HX) from the SO3 reactant which gives rise to a chain reaction initiated by O3 ＋ HX → OH ＋ O2 ＋ X and also SO3 has a larger collision diameter, which may be attributed to the O3 thermal decomposition more feasibly. The proposed experimental law [-d(O3)/dt] = ka(SO3)(O3) ＋ kb'(O3)3/2 gives a rate constant ka(M-1 s-1) = (1.55 ± 0.67) × 105 e-(9.27 0±0.43)kcal/RT.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|