It has been found that for a chemical reaction with rise in temperature by 9 K the rate constant gets doubled. Assuming a reaction to be occurring at…

It has been found that for a chemical reaction with rise in temperature by $\displaystyle 9$ K the rate constant gets doubled. Assuming a reaction to be occurring at $\displaystyle 300$ K , the value of activation energy is found to be \_\_\_\_ $\displaystyle \mathrm{kJ} \mathrm{mol}^{-1}$. [nearest integer] (Given $\displaystyle \ln 10=2.3, \mathrm{R}=8.3 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}, \log 2=0.30$ )