RRKM theory

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(Rice-Ramsperger-Kassel-Marcus theory)

A theory of unimolecular chemical reactions in which the Rice-Ramsperger-Kassel theory was improved by the US chemists O. K. Rice and R. A. Marcus in 1950; it was further improved subsequently in several papers by Marcus and associates by taking into account the individual vibrational frequencies, rotations, and zero-point energies of the energized species and activated complexes taking part. The RRKM theory is very successful in explaining the results of experiments for unimolecular reactions for a variety of reactions.

Subjects: Chemistry.

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