Response of Unstable Chemical Systems to External Perturbations

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Abstract
For a system of coupled chemical reactions, with diffusion and in a homogeneous steady state near marginal stability, the response to a periodic external perturbation is derived in a linear analysis and shown to be a resonance phenomenon. Responses to perturbations of external variables with small effects on the rate coefficients are large at resonance. Suggested applications of the theory are: (1) study of kinetic parameters and their dependence on external variables; (2) use of marginally stable systems as analogs of electronic devices; (3) use of marginally stable systems as sensors and receptors; and (4) double resonance experiments.

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