Vibrational Relaxation Times of Oxygen in the Temperature Range 100°–200°C
- 1 April 1965
- journal article
- Published by Acoustical Society of America (ASA) in The Journal of the Acoustical Society of America
- Vol. 37 (4) , 718-723
- https://doi.org/10.1121/1.1909403
Abstract
Vibrational relaxation times in pure oxygen have been measured over the temperature range 100°–200°C. An anomalously rapid decrease in the relaxation time is observed for temperatures above 150°C, confirming earlier conclusions based on a comparison of theory and experiment [J. G. Parker, J. Chem. Phys. 41, 1600–1609 (1964)]. This decrease in the vibrational relaxation time may be interpreted as a transition in oxygen from a low-temperature state to a high-temperature state, although the exact nature of the physical mechanism underlying this transition remains obscure.Keywords
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