The Origin of the Ultrasonic Absorption in Liquids. II
- 1 February 1952
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 20 (2) , 288-289
- https://doi.org/10.1063/1.1700394
Abstract
Excess absorption in nonassociated liquids has been explained by the same mechanism as is responsible for molecular absorption in gases, namely, slow exchange of energy between internal and external degrees of freedom. In this paper the rate of energy exchange is calculated for benzene and found to be three times too rapid. The Lennard‐Jones interaction potential and model of the liquid are used; the fourth‐order terms in the interaction provide the coupling between internal vibrations and Debye waves.Keywords
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