VIBRATIONAL-RELAXATION OF H2O .2. MEASURED DENSITY CHANGES - MASTER EQUATION STUDY OF THE MECHANISM OF RELAXATION

被引:8
作者
DOVE, JE [1 ]
TEITELBAUM, H [1 ]
机构
[1] UNIV TORONTO,DEPT CHEM,TORONTO M5S 1A1,ONTARIO,CANADA
关键词
D O I
10.1016/0301-0104(79)85122-8
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The vibrational relaxation of H2 in mixtures with inert gases has been studied in shock waves, using laser schlieren densitometry. The measured total density changes corresponding to the observed relaxation are too large to be accounted for by changes in vibrational energy alone. It is suggested that the rotational degrees of freedom of H2 participate in the relaxation process. This is confirmed by master equation studies of the relaxation mechanism, which indicate that an important role is played by transitions involving simultaneous changes in rotational and vibrational energy. © 1979.
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收藏
页码:87 / 102
页数:16
相关论文
共 100 条
[81]   IMPACT PARAMETER METHODS WITH EFFECTIVE POTENTIALS FOR INELASTIC MOLECULAR COLLISIONS [J].
RABITZ, H .
JOURNAL OF CHEMICAL PHYSICS, 1973, 58 (09) :3975-3987
[82]   EXTENSION OF A HE-H2 POTENTIAL-ENERGY SURFACE [J].
RACZKOWSKI, AW ;
LESTER, WA .
CHEMICAL PHYSICS LETTERS, 1977, 47 (01) :45-49
[83]   VIBRATION-ROTATION RELAXATION IN BIMOLECULAR COLLISIONS WITH APPLICATION TO PARA-HYDROGEN [J].
RAMASWAMY, R ;
RABITZ, H .
JOURNAL OF CHEMICAL PHYSICS, 1977, 66 (01) :152-159
[84]   THEORY OF VIBRATIONAL ENERGY TRANSFER BETWEEN SIMPLE MOLECULES IN NONREACTIVE COLLISIONS [J].
RAPP, D ;
KASSAL, T .
CHEMICAL REVIEWS, 1969, 69 (01) :61-&
[85]   RESONANCE THEORY OF TERMOLECULAR RECOMBINATION KINETICS - H+H+M-]H2+M [J].
ROBERTS, RE ;
BERNSTEIN, RB ;
CURTISS, CF .
JOURNAL OF CHEMICAL PHYSICS, 1969, 50 (12) :5163-+
[86]  
ROBERTS RE, 1968, THESIS U WISCONSIN
[87]   EXCITATION OF MOLECULAR VIBRATION ON COLLISION [J].
SALKOFF, M ;
BAUER, E .
JOURNAL OF CHEMICAL PHYSICS, 1958, 29 (01) :26-31
[88]  
SHIN HK, 1976, CHEM PHYS LETT, V37, P143, DOI 10.1016/0009-2614(76)80181-9
[89]  
SHIN HK, 1971, J PHYS CHEM, V75, P7001
[90]   HIGH-TEMPERATURE VIBRATIONAL-RELAXATION IN HD [J].
SIMPSON, CJSM ;
PRICE, TJ ;
CROWTHER, ME .
CHEMICAL PHYSICS LETTERS, 1975, 34 (01) :181-183