Question

The rate constant of a reaction becomes equal to the pre-exponential factor at temperature.

• A. 0 K
• B. infinite
• C. 1000 K

Answer 1

The correct option is B infinite

$k=A.e^{-\frac{E_a}{RT}}$

As T $\to$ $\infty$,

The value of $\frac{E_a}{RT}$ $\to$ 0

Therefore, $k=A.e^{-\frac{E_a}{RT}}$ becomes,

$k=A.e^0$

Giving,
$k=A$