Modified Rate Law for Bimolecular Reactions: Applicable to Surface as well as Non-surface Reactions

Author:

Bhagavanbhai Gami Girishkumar1,Kumar Rawesh2

Affiliation:

1. Department of Chemistry, Sankalchand Patel University, Gujarat, India.

2. Department of Chemistry, Indus University, Gujarat, India.

Abstract

The rate equations in kinematics are expressed through basic laws under surface reaction as well as non-surface reaction. Rate law is center theme of non-surface reaction whereas Langmuir adsorption isotherms are basis of surface reaction rate expressions. A modified rate equation for bimolecular reaction is presented which considers both catalyst surface affairs as well as fraction of successful collision of different reactant for cracking and forming bonds. The modified rate law for bimolecular reaction for surface as well as non-surface reaction is stated as “Rate of a reaction is directly proportional to concentration as well as catalyst surface affair of each reactant” as r = k ΩA[A] ΩB[B] where catalyst surface affair of ith species is defined as Ωi = Ki/(1+Ki[i] + Kj[j] + …). Here, Ki is the equilibrium constant of “i” species for adsorption-desorption processes over catalyst. i, j,… indicates the different adsorbed chemical species at uniform catalyst sites and the same [i], [j], … indicates the concentration of different adsorbed chemical species at uniform catalyst sites.

Publisher

Oriental Scientific Publishing Company

Subject

Drug Discovery,Environmental Chemistry,Biochemistry,General Chemistry

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