If activation energy, Ea of the reaction is equal to RT then

Question

If activation energy, Ea of the reaction is equal to RT then (A) The rate of reaction will be independent on initial concentration of reactant. (B) The rate constant becomes approximately equal to 37 % of the Arrhenius constant (C) The rate of reaction becomes infinite (D) The rate of reaction always be first order.

Tardigrade Admin · Accepted Answer

k=A e- Ea / R T When Ea=RT , then k=(A/e)=(A/2.718) overset∼ - 0.37 A The rate constant becomes approximately equal to 37% of the Arrhenius constant

Q. If activation energy, $E_{a}$ of the reaction is equal to $RT$ then

The rate of reaction will be independent on initial concentration of reactant.

The rate constant becomes approximately equal to $37%$ of the Arrhenius constant

The rate of reaction becomes infinite

The rate of reaction always be first order.

$k = A e^{- E_{a} / RT}$
When $E_{a} = RT$ , then $k = \frac{A}{e} = \frac{A}{2.718} - \sim 0.37 A$
The rate constant becomes approximately equal to 37% of the Arrhenius constant

Q. If activation energy, Ea​ of the reaction is equal to RT then