Question

Arrhenius equation $k=A{e}^{-E_a/RT}$
If the activation energy of the reaction is found to be equal to RT, then [given : $\frac{1}{e}=0.3679$ ]

• A. the rate of reaction does not depend upon initial concentration
• B. the rate constant becomes about 37% of the Arrhenius constant A
• C. the rate constant becomes equal to 73% of the Arrhenius constant A
• D. the rate of the reaction becomes infinite or zero

Answer 1

Answer: (B)

$k=A{e}^{-E_a/RT}$
When, $E_a=RT$
$\frac{k}{A}=\frac{1}{e}=0.3679=0.37$