In Arrhenius equation for activation energy, k=A e-Ea / R t, A represents the following [a] Pre exponential factor [b] Frequency factor [c] Arrhenius factor [d] Collision factor and frequency The correct answer is

Question

In Arrhenius equation for activation energy, k=A e-Ea / R t, A represents the following [a] Pre exponential factor [b] Frequency factor [c] Arrhenius factor [d] Collision factor and frequency The correct answer is (A) 1 and 3 (B) 1 and 2 (C) 3 and 4 (D) -2 and 3

Tardigrade Admin · Accepted Answer

In Arrhenius equation, A is pre-exponential factor. Its units are identical to those of the units of rate constant. For first order reaction, its unit is

s^{- 1},

hence it is often called frequency factor.
Note: It is sometimes also called Arrhenius factor.

Q. In Arrhenius equation for activation energy, k=Ae−Ea​/Rt,A represents the following [a] Pre exponential factor [b] Frequency factor [c] Arrhenius factor [d] Collision factor and frequency The correct answer is

1 and 3

1 and 2

3 and 4

-2 and 3

In Arrhenius equation, A is pre-exponential factor. Its units are identical to those of the units of rate constant. For first order reaction, its unit is s−1, hence it is often called frequency factor. Note: It is sometimes also called Arrhenius factor.

Q. In Arrhenius equation for activation energy, $k = A e^{- E_{a} / Rt}, A$ represents the following
[a] Pre exponential factor
[b] Frequency factor
[c] Arrhenius factor
[d] Collision factor and frequency
The correct answer is

In Arrhenius equation, A is pre-exponential factor. Its units are identical to those of the units of rate constant. For first order reaction, its unit is $s^{- 1},$ hence it is often called frequency factor.
Note: It is sometimes also called Arrhenius factor.