‘X’ litres of carbon monoxide is present at STP. It is completely oxidised to CO₂. The volume of CO₂ formed is 11.2 litres at STP. What is the value of ‘X’ in litres?

At standard temperature and pressure (STP), which is defined as 0°C (273.15 K) and 1 atmosphere (1 atm) pressure, the volume occupied by 1 mole of any gas is approximately 22.4 liters.

$$\begin{gathered} \mathbf{ }{\mathbf{CO}}_{\mathbf{\left(}\mathbf{g}\mathbf{\right)}}\mathbf{+}\mathbf{ }\frac{1}{2}{\mathbf{O}}_{\mathbf{2}\mathbf{ }\mathbf{\left(}\mathbf{g}\mathbf{\right)}}\mathbf{ }\mathbf{\to }\mathbf{ }{\mathbf{CO}}_{\mathbf{2}\mathbf{ }\mathbf{\left(}\mathbf{g}\mathbf{\right)}} \\ 22.4\mathrm{L} 22.4\mathrm{L} \\ \mathrm{In} \mathrm{the} \mathrm{above} \mathrm{reaction}, \mathbf{1}\mathbf{ }\mathbf{mole}\mathbf{ }\mathbf{of}\mathbf{ }\mathbf{CO} \mathrm{is} \mathrm{producing} \mathbf{1}\mathbf{ }\mathbf{mole}\mathbf{ }\mathbf{of}\mathbf{ }{\mathbf{CO}}_{\mathbf{2}} \\ \mathrm{So} \mathrm{to} \mathrm{produce} 11.2 \mathrm{L} \mathrm{of} {\mathrm{CO}}_2 , \mathbf{11}\mathbf{.}\mathbf{2}\mathbf{ }\mathbf{L}\mathbf{ }\mathbf{of}\mathbf{ }\mathbf{CO} \mathrm{is} \mathrm{required}. \end{gathered}$$