✦ LIBER ✦

The vibrational relaxation of I2 by H2 in a supersonic jet

✍ Scribed by Pamela S.H. Fitch; Lennard Wharton; Donald H. Levy

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 307 KB
Volume: 48
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(77)80231-5

No coin nor oath required. For personal study only.

✦ Synopsis

The vibrational relaxation of Is by Ha has been studied in a supersonic free jet. It was observed that the addition of 5% Ha to the hehum carrier gas greatly reduces the concentration of X r Z&" = I) 12 in the jet as compared to the concentration in a pure helium carrier. From this observation we have determined that the average vibrational relaxation cross sections of H2 is 7.1 times as large as that of helium. Since the average vrbrational relaxation cross section of deuterium is at least as large as that of hydrogen, the mech!anism responsible for this phenomenon appears not to be dominated by mass effects.

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