molecularity


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Related to molecularity: Order of reaction, Rate law

molecularity

[mə‚lek·yə′lar·əd·ē]
(physical chemistry)
In a chemical reaction, the number of molecules which come together and form the activated complex.
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Recalling that the reaction order exponent is related to the number of species intervening in the chemical reaction, the findings of this work indicate the possibility of changes in the species molecularity along the reaction, due to vitreous, rather than diffusive, limitations.

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