Vibrational Energy Exchange and Deactivation Processes in the HF-DF, HR-CO and DF-CO Systems from 2050K to 6750K PDF Download
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Author: Roy Alan Lucht
Publisher:
ISBN:
Category : Energy transfer
Languages : en
Pages : 280
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Book Description
Author: Roy Alan Lucht
Publisher:
ISBN:
Category : Energy transfer
Languages : en
Pages : 280
Get Book Here
Book Description
Author: Roy Alan Lucht
Publisher:
ISBN:
Category : Energy transfer
Languages : en
Pages : 232
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Book Description
Author: Jeffrey Leonard Ahl
Publisher:
ISBN:
Category : Energy transfer
Languages : en
Pages : 150
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Book Description
Author: Mark A. Muyskens
Publisher:
ISBN:
Category :
Languages : en
Pages : 372
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Book Description
Author: J. F. Bott
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
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Book Description
Water is often present as an impurity in HF chemical laser systems and can affect laser performance because of the large HF(1) - H2O deactivation rate coefficient. Diatomic molecules have been found to deactivate the higher vibrational levels of HF(v) with rate coefficients that scale with v as v superscript n where n = 2.7 when the deactivation process is exothermic. This scaling does not hold for HF(v) - H2 collisions in which the primary deactivation process is an endothermic V-V transfer with the endothermicity increasing with v. The room temperature (T = 295 K) deactivation rate of HF (v = 3) by H2O has been measured to be faster than the deactivation rate of HF(v = 1) by H2O by a factor of 3.9. On the basis of a previously reported measurement of the HF(v = 1) - H2O rate coefficient, the deactivation rate coefficient of HF(v = 3) by H2O is estimated to be 16 microseconds/Torr, which is a factor of 3 faster than the hard sphere collision rate. The theoretical implication of this fast-rate coefficient are reviewed. Keywords: Chemical kinetics; Vibrational deactivation.
Author: Jerry F. Bott
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
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Book Description
The V-V energy transfer rates from DF (v = 1) to HCl, HBr, DBr, D2, N2, O2, CO, and NO were measured at temperatures from 295 to 800K. The measurements were made behind reflected shock waves with the laser-induced fluorescence technique. Several rates of V-R, T deactivation by DF were also obtained. (Modified author abstract).
Author: R. F Heidner (III.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 37
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Book Description
The deactivation of HF(v = 1) and DF(v = 1) by H and D atoms was studied at 295 K by means of the techniques of laser-induced infrared fluoresence and isothermal calorimetry. The upper limits for the deduced rate coefficients are well-defined, but the lower limits are imprecise. The results of this study are compared with other experimental data and with trajectory calculations. Qualitative data are presented regarding the role of reactive, i.e., F-atom exchange, versus nonreactive collisions in the removal of the v = 1 level. A verification of the method was made by determining a rate coefficient for H + HCl(v = 1) that is in good agreement with a recent study.
