SYSTEMATICS OF EVAPORATION

被引：187

作者：

KLOTS, CE

机构：

[1] Chemical Physics Section, Health and Safety Research Division, Oak Ridge National Laboratory, Oak Ridge, 37831-6125, TN

来源：

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS | 1991年 / 20卷 / 1-4期

关键词：

D O I：

10.1007/BF01543949

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Beginning with rather basic principles, general relations are obtained for evaporative rate constants. These are established both as a function of energy and of temperature. In parallel with this, expressions are developed for the kinetic energy distribution of the separating species. Explicit evaluation of the rate constants in the case of "chemical" evaporation from an entity containing n monomeric units yields as a typical result k(T)(s-1) = 3.10(13)n2/3 exp[6/n1/3]exp(-DELTA-E(a)(n)/k(B)T). Experimental evidence in support of this relation is cited. Applications to thermionic emission are also noted.

引用

页码：105 / 109

页数：5

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