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Citation: GE Su-Hong, DONG Guang-Xing, CHENG Xin-Lu, YANG Xiang-Dong. Reaction of H₂ and N⁺ Ion under Titan′s Atmosphere[J]. Acta Physico-Chimica Sinica, ;2006, 22(10): 1217-1221. doi: 10.1016/S1872-1508(06)60056-9 shu

Reaction of H₂ and N⁺ Ion under Titan′s Atmosphere

1.
Department of Physics, Hexi University, Zhangye 734000, P. R. China; Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, P. R. China

Received Date: 7 March 2006
Available Online: 11 October 2006

The thermochemical properties of reaction N++H2→NH++H have been computed under Titan′s atmosphere conditions. It is observed that this reaction is an endothermic reaction and cannot proceed forward spontaneously under low temperature. The rate for this reaction at 300 K has been calculated as k=4.16×10−10 cm3•mol−1•s−1. The reaction barrier is 109.847 kJ•mol−1 at 298.15 K, which is probably too high to allow this reaction to occur in the atmosphere of Titan. The kinetic properties of the reaction are calculated at a pressure of 90 Pa and a temperature ranging from 1 to 5000 K. It is found that this reaction has very low reaction rate under low temperature in Titan′s atmosphere and that the rate decreases drastically with decreasing temperature. This result should be applicable to interstellar place of the low temperature values. The results are compared with those obtained from experiments.
- Titan;Thermodynamic;Activation free energy;Reaction rate
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沈阳化工大学材料科学与工程学院沈阳 110142

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Reaction of H2 and N+ Ion under Titan′s Atmosphere

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通讯作者: 陈斌, bchen63@163.com

Reaction of H₂ and N⁺ Ion under Titan′s Atmosphere