Chemical Kinetics and Mass Action in Coexisting Phases.

First Authors Jonathan Bauermann, Sudarshana Laha
Authors Jonathan Bauermann, Sudarshana Laha, Patrick M McCall, Frank Jülicher, Christoph A. Weber
Corresponding Authors Frank Jülicher, Christoph A. Weber
Last Authors Christoph A. Weber
Journal Name Journal of the American Chemical Society (J Am Chem Soc)
Volume 144
Issue 42
Page Range 19294-19304
Open Access false
Print Publication Date 2022-10-26
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Abstract The kinetics of chemical reactions are determined by the law of mass action, which has been successfully applied to homogeneous, dilute mixtures. At nondilute conditions, interactions among the components can give rise to coexisting phases, which can significantly alter the kinetics of chemical reactions. Here, we derive a theory for chemical reactions in coexisting phases at phase equilibrium. We show that phase equilibrium couples the rates of chemical reactions of components with their diffusive exchanges between the phases. Strikingly, the chemical relaxation kinetics can be represented as a flow along the phase equilibrium line in the phase diagram. A key finding of our theory is that differences in reaction rates between coexisting phases stem solely from phase-dependent reaction rate coefficients. Our theory is key to interpreting how concentration levels of reactive components in condensed phases control chemical reaction rates in synthetic and biological systems.
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DOI 10.1021/jacs.2c06265
PubMed ID 36241174
WebOfScience Link WOS:000875521000001
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Created By thuem
Added Date 2022-11-21
Last Edited By thuem
Last Edited Date 2022-11-21 11:38:34.489
Library ID 8477
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