Chemical Fluctuations

  • Wilhelm Brenig


The fluctuations of the progress variables χ r around their averages may be called “chemical fluctuations”. A measure of such fluctuations are the correlations 〈Δχ r Δχ s 〉, which are given in terms of the susceptibilities by
$$\left\langle {\Delta {x_r}\Delta {x_s}} \right\rangle = kT\frac{{\partial {x_r}}}{{\partial {\alpha _s}}}.$$


Couple Reaction Relaxation Function Progress Variable Voltage Fluctuation Resistance Noise 
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  1. 25.1
    Brenig, W.: Statistische Theorie der Wärme I. Gleichgewicht, 2nd ed. ( Springer, Berlin, Heidelberg 1983 )Google Scholar
  2. 25.2
    Feher, G., Weissman, M.: Proc. Natl. Acad. Sci. USA 70, 870 (1973)ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • Wilhelm Brenig
    • 1
  1. 1.Physik-DepartmentTechnische Universität MünchenGarchingFed. Rep. of Germany

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