A cylindrical container of volume $4.0\times {10}^{-3}{ \mathrm{m}}^3$ contains one mole of hydrogen and two moles of carbon dioxide. Assume the temperature of the mixture is $400 \mathrm{K}$. The pressure of the mixture of gases is :
[Take gas constant as $\left.8.3 \mathrm{J}{ \mathrm{mol}}^{-1}{ \mathrm{K}}^{-1}\right]$

The average translational kinetic energy of $N_2$ gas molecules at $\_\_\_\_\_{}^{\circ }\mathrm{C}$ becomes equal to the $\mathrm{K}.\mathrm{E}.$ of an electron accelerated from rest through a potential difference of $0.1 \mathrm{volt}.$

(Consider $0 \mathrm{K}=-273 °\mathrm{C}$, $\left.k_B=1.38\times {10}^{-23} \mathrm{J} {\mathrm{K}}^{-1} \text{and} \mathrm{e}=1.6\times {10}^{-19} \mathrm{C}\right)$ (Fill the nearest integer).