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Citation: RUAN Wenjuan, ZHU Zhiang. Discussion about the Definition of Reaction Molecularity[J]. University Chemistry, ;2018, 33(12): 96-99. doi: 10.3866/PKU.DXHX201803035 shu

Discussion about the Definition of Reaction Molecularity

RUAN Wenjuan ,
ZHU Zhiang

College of Chemistry, Nankai University, Tianjin 300071, P. R. China

Received Date: 16 March 2018

There are two different views on the definition of reaction molecularity in physical chemistry textbooks and related literatures so far. We give a deep discussion about this conception herein. Starting with the development of chemical kinetics and the definition of elementary reaction and state-state reaction, we clarify that elementary reaction and state-state reaction are the conceptions belonging to macro-and micro-systems, respectively, and reaction molecularity is also belonging to micro-conception. Based on this conclusion, we think that the more reasonable definition of reaction molecularity should be "the number of chemical particles that take part in a state-state reaction (or an elementary chemi-physical reaction) as a reactant".
- Reaction molecularity,
- Elementary reaction,
- State-state reaction (or Elementary chemi-physical reaction),
- Chemical kinetics
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