Abstract
IN view of the discussion at the Faraday Society on September 28, it is perhaps of interest to direct attention to the Dushman equation for the mono-molecular velocity constant (Journal A.C.S., 1921, vol. 43, p. 397). This equation,, where h, R, T, and v have the usual significance and represents the number of active molecules, is found to hold fairly accurately for certain monomolecular reactions that have been investigated. Of these the chief are the decomposition of phosphine and nitrogen pentoxide. Much dispute has arisen as to the meaning of v. Is this related to the frequencies of the activating radiation, or is it a frequency characteristic of some degree of freedom in the decomposing molecule? Judging from the constancy of hv over a range of temperatures, the latter would appear to be the more reasonable assumption. The relationship between v and the absorbed and emitted frequencies would thus be left open.
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GARNER, W. The Dushman Equation for the Velocity of a Mono-molecular Reaction. Nature 108, 211 (1921). https://doi.org/10.1038/108211a0
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DOI: https://doi.org/10.1038/108211a0
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