Which is Incorrect according to the Arrhenius's equation ? - Vidyadip

MCQ

Which is Incorrect according to the Arrhenius's equation ?

A
The number of effective collisions depends on the number of molecules above a certain threshold energy
B
As the temperature increases, the number of molecules with energies exceeding the threshold energy increases
C
The rate const ant is a function of temperature
✓
Activation energy and pre-exponential factors are temperature independent

✓

Answer

Correct option: D.

Activation energy and pre-exponential factors are temperature independent

d
$k=A e^{-E_a / R T}$

It indicates that effective collisions occur by those molecules which have proper orientation with energy more than threshold energy. As $T$ increases number of molecules with energies exceeding the threshold energy also increases.

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