In a bimolecular reaction, the steric factor P was experimentally determined to be 4.5. The correct options among the following is (are):

Options

A. The activation energy of the reaction is unaffected by the value of the steric factor.
B. Experimentally determined value of frequency factor is higher than that predicted by Arrhenius equation.
C. The value of frequency factor predicted by Arrhenius equation is higher than that determined experimentally.
D. Since, P=4.5, the reactions will not proceed unless an effective catalyst is used.

Answer

A, B

Explanation

(a,b) Activation energy of the reaction is unaffected by the value of steric factor (P).
Steric factor = `(A_("experimental"))/(A_("calculated"))` (A represents frequency factor)
Since steric factor is quite high (4.5),
This means that `A_("exponential")` is higher than `A_("calculated")` i.e.,
`A_("experimental") gt A_("calculated")` is higher than `A_("calculated")` i.e.,