For the adsorption of hydrogen on platinum, the activation energy is 30 kJ $\mathrm{mol}^{-1}$ and for the adsorption of hydrogen on nickel, the activation energy is 41.4 kJ $\mathrm{mol}^{-1}$. The logarithm of the ratio of the rates of chemisorption on equal areas of the metals at 300 K is____. (Nearest integer) Given: In $10=2.3 \mathrm{R}=8.3 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}$