Problem: The activation energy of a reaction is 56.8 kJ/mol and the frequency factor is 1.5 x1011/s. Calculate the orientation factor of the reaction at 25°C.A. 17 s-1B. 34 s-1C. 2.1 x 10-9s-1D. 6.3 x 103s-1E. none of these

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We’re being asked to determine the orientation factor of a reaction given that the activation energy is 56.8 kJ/mol and the frequency factor is 1.5x1011 s-1


Acc. to the Arrhenius equation, frequency factor A represents the number of approaches to the activation barrier per unit of time

k = Ae-Ea/RT

where k = is the rate; 

A = Frequency factor

Ea = Activation energy

R = Gas constant

T = Temperature

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Problem Details

The activation energy of a reaction is 56.8 kJ/mol and the frequency factor is 1.5 x1011/s. Calculate the orientation factor of the reaction at 25°C.

A. 17 s-1

B. 34 s-1

C. 2.1 x 10-9s-1

D. 6.3 x 103s-1

E. none of these