Chemistry - Chemical Kinetics Question with Solution | TestHub

When the activation energy of a reaction is zero, the rate constant (k) of the reaction is nearly independent of temperature.
${\mathrm{E}}_{\mathrm{a}}=0$
So$\mathrm{k}=\mathrm{A}{\mathrm{e}}^{-{\mathrm{E}}_{\mathrm{a}}/\mathrm{R}\mathrm{T}}$
$=\mathrm{A}{\mathrm{e}}^{-0}=\mathrm{A}$
Hence the rate constant is independent of temperature.