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Abstract
Madden and Kivelson's calculation [5] of the spectrum of light scattered by a two-component chemically reacting fluid is re-examined. The light scattered by density (as opposed to composition) fluctuations contains two central (Rayleigh) lines whose widths in appropriate limits are determined by thermal diffusion, and by chemical reaction and mutual diffusion, respectively. The integrated intensities of the two lines are calculated in terms of standard thermodynamic quantities. If the reactive and thermal diffusive lines have substantially different widths, the narrower of the two lines may be seen either as a central peak or as a dip, centred at θ = 0, in the broader of the two lines. The theory of light scattering by a two-component fluid system with an nA ⇋ A n reaction is shown to be formally identical to the corresponding theory for a system with an A ⇋ B isomerization reaction. Some corrections to the detailed results of their earlier paper are presented as an Appendix.
Work supported in part by the National Science Foundation under Grant No. MPS 742 4612A-04.
Work supported in part by the National Science Foundation under Grant No. MPS 742 4612A-04.
Notes
Work supported in part by the National Science Foundation under Grant No. MPS 742 4612A-04.