Rate of a general reaction A + B `to` products can be expressed as follows on the basis of collision theory.
Rate `= Z_(AB) e^(-E_(a)//RT)`
Which of the following statements is not correct for the above expression?

Options

A. Z is collision frequency and is equal to number of collision per second per unit volume of the reaction mixture
B. `e^(E_(a )//RT) ` is the fracation of molecules with kinetic energy equal to or greater than `E_(a) `
C. `E_(a) ` is activation energy of the reaction
D. All the molecules which colloide with one other are effective collisions

Answer

D

Explanation

Only those collisions in which molecules colloide with sufficient energy , called threshold energy and proper orientation are effectiv collisions , Rest of the molecules colloide and bounce back.