The gas produced by the passage of air over hot coke is

The gas produced by passage of air over hot coke is called producer gas. The reaction proceeds as: 2 $\mathrm{C}+\underbrace{\mathrm{O}_2+\mathrm{N}_2}_{\text {Coke }} \stackrel{\Delta}{\longrightarrow} \underbrace{2 \mathrm{CO}+\mathrm{N}_2}_{\text {Producer gas }}$Other carbonaceous (carbon containing) fuels also produce producer gas of different compositions.