气候变化领域集成服务门户(CCPortal): UV spectroscopic determination of the chlorine monoxide (ClO) / chlorine peroxide (ClOOCl) thermal equilibrium constant

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DOI	10.5194/acp-19-6205-2019
	UV spectroscopic determination of the chlorine monoxide (ClO) / chlorine peroxide (ClOOCl) thermal equilibrium constant
	Eric Klobas J.; Wilmouth D.M.
发表日期	2019
ISSN	16807316
起始页码	6205
结束页码	6215
卷号	19 期号:9
英文摘要	The thermal equilibrium constant between the chlorine monoxide radical (ClO) and its dimer, chlorine peroxide (ClOOCl), was determined as a function of temperature between 228 and 301K in a discharge flow apparatus using broadband UV absorption spectroscopy. A third-law fit of the equilibrium values determined from the experimental data provides the expression Keq D 2:16 × 10-27e(8527±35K=T ) cm3 molecule-1 (1σ uncertainty). A second-law analysis of the data is in good agreement. From the slope of the van't Hoff plot in the third-law analysis, the enthalpy of formation for ClOOCl is calculated, ΔHf° (298K) = 130:0±0:6 kJ mol-1. The equilibrium constant results from this study suggest that the uncertainties in Keq recommended in the most recent (year 2015) NASA JPL Data Evaluation can be significantly reduced. © Author(s) 2019.
语种	英语
scopus关键词	chlorine monoxide; concentration (composition); data set; equilibrium; experimental study; ultraviolet radiation
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144424
作者单位	Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States; Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, United States
推荐引用方式 GB/T 7714	Eric Klobas J.,Wilmouth D.M.. UV spectroscopic determination of the chlorine monoxide (ClO) / chlorine peroxide (ClOOCl) thermal equilibrium constant[J],2019,19(9).
APA	Eric Klobas J.,&Wilmouth D.M..(2019).UV spectroscopic determination of the chlorine monoxide (ClO) / chlorine peroxide (ClOOCl) thermal equilibrium constant.Atmospheric Chemistry and Physics,19(9).
MLA	Eric Klobas J.,et al."UV spectroscopic determination of the chlorine monoxide (ClO) / chlorine peroxide (ClOOCl) thermal equilibrium constant".Atmospheric Chemistry and Physics 19.9(2019).