A rigid tank of $300 \: \mathrm{litre}$ capacity contains $3 \: \mathrm{kg}$ of oxygen (molar mass $=32 \mathrm{~kg} / \mathrm{kmol}$ ) at $25^{\circ} \mathrm{C}$. If oxygen behaves as an ideal gas, the pressure (in $\mathrm{kPa}$ ) inside the tank is $\_\_\_\_\_\_$ (rounded off to two decimal places).
Use: Universal gas constant $\left(R_{u}\right)=8.314 \mathrm{~kJ} / \mathrm{kmol}-\mathrm{K}$
