Q.

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

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a

The activation energy of the reaction is unaffected by the value of the steric factor

b

Since P = 4.5, the reaction will not proceed unless an effective catalyst is used

c

The value of frequency factor predicted by Arrhenius equation is higher than that determined experimentally

d

Experimentally determined value of frequency factor is higher than that predicted by Arrhenius equation

answer is A.

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Detailed Solution

Ea is independent of steric factor,K=A.e−Ea/RT A=Z×PSteric factor,Exp. Z value is high ,If “P” high reaction is very fast ,So Reaction  need not required a catalyst.
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In a bimolecular reaction, the steric factor P was experimentally determined to be 4.5. the correct option(s) among the following is (are)