Rice-Rampsberger-Kassel-Marcus

Rice-Rampsberger-Kassel-Marcus (RRKM) Treatment... 

RICE-RAMPSBERGER-KASSEL-MARCUS (RRKM) TREATMENT... 

Note The Lindemann mechanism was also suggested independently by Christiansen. Hence, it is also sometimes referred to as the Lindemann-Christiansen mechanism. The theory of unimolecular reactions was further developed by Hinshelwood and refined by Rice, Rampsberger, Kassel and Marcus. 

Two almost identical theories explaining the phenomena observed in the case of unimolec-ular reactions in the gas phase at high vacuum were proposed in 1952. One of them, the quasi-equilibrium theory (QET), was suggested by Rosenstock et al. [2] and applies to mass spectrometry. The other is named after the initials of its authors, RRKM, standing for Rice, Rampsberger, Kassel and Marcus [3], and deals with neutral molecules. 

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