The equation
$$ k=\left(6.5 \times 10^{12} \mathrm{~s}^{-1}\right) \mathrm{e}^{-28000 \mathrm{kJT}} $$ is followed for the decomposition of compound A .
The activation energy for the reaction is $\_\_\_\_$ $\mathrm{kJ} \mathrm{mol}{ }^{-1}$. [nearest integer]
(Given: $\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$ )