Question

If activation energy, E_a 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.

Answer 1

Answer: (B)

The rate constant becomes approximately equal to 37% of

the Arrhenius constant

Answer 2

k = A $e^{- E_{a}/RT}$

When E_a = RT, then k = $\frac{A}{e}$ = $\frac{A}{2.718}$ ~ 0.37 A