Question

Give a detailed account of the collision theory of reaction mils of Bimolecular gaseous reactions.

Answer 1

b) The detailed account of the collision theory of reaction mils of Bimolecular gaseous reactions:
(i) The reaction molecules are assumed to be hard spheres
(ii) When molecules collide with each other, the reaction will occur.
(iii) Collision frequency (Z) is the number of collisions per second per unit volume of the reaction mixture.
(iv) For a bimolecular elementary reaction
$A+B\to$ products
Rate $=Z{e}^{-E_a/RT}$
(v) All collisions do not result in reaction.
(vi) The probability factor (p) also called steric factor accounts for effective collisions.
Rate $=pZ\cdot e^{-E_a/RT}$
(vii) The proper orientation of reactant molecules result in bond formation. No product is formed with improper orientation.