Question

In collision theory of chemical reaction, Z_AB represents

(1) the fraction of molecules with energies equal to E_a

(2) the fraction of molecules with energies greater than E_a

(3) the collision frequency of reactants, A and B

(4) steric factor

Comments

Chemical kinetics, collision theory

Answer 1

Ans: (3) the collision frequency of reactants, A and B

Sol. The number of collisions per second per unit volume of the reaction mixture (A and B) is known as collision frequency Z_AB.