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

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

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

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

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

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Solution

The correct options are
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
The activation energy of the reaction is unaffected by the value of the steric factor
$P = \frac{K_{a c t u a l}}{K_{t h e o r e t i c a l}}$
So, $A_{a c t u a l} > A_{t h e o r e t i c a l}$
Hence we can say, experimentally determined value of frequency factor is higher than that predicted by Arrhenius equation.

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4.5

{Pb}_{3} O_{4} + 8 HCl Heat - - \to 3 {PbCl}_{2} + {Cl}_{2} + 4 H_{2} O

S

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