Question

Write the formula of water gas and producer gas.

Answer 1

Producer gas is the product of the burning of coke in a controlled atmosphere while water gas is the product of synthesis gas or syngas. Both producer gas and water gas are highly efficient as fuels.

Complete step by step answer:
-Producer gas which also works as fuel gas is manufactured mainly from material like coal, as opposed to natural gas. It is produced from various fuels via partial combustion with air, usually modified by concurrent injection of water or steam to keep a constant temperature and generate a higher heat content gas through the enrichment of air gas with hydrogen.
-Producer gas is produced when coal or coke is combusted with air deficiency and in controlled moisture content. It is a gas mixture containing carbon monoxide hydrogen, carbon dioxide, and nitrogen.
-In the USA, producer gas is a generic term referring to wood gas, town gas, or syngas.. Air is passed over the red-hot fuel and carbon monoxide is produced in an exothermic reaction which reads $2C\, + \,{O_2}\, \to \,2CO$.
-The nitrogen in the air remains unchanged and dilutes the gas, so it has a low calorific value. The gas can also be used to power gas turbines that are more used to fuels that have a low calorific value.
-Water-gas is produced when steam is passed over red hot coke in an endothermic reaction. The constituent mixture of this gas are $CO$ and ${H_2}$.
$C\, + {H_2}O\, \to \,CO\, + \,{H_2}$
-The heat of combustion of Water gas is lesser than coal gas. You can also generate pure Hydrogen from water gas using a water shift reaction.
-Hence the formula of water gas is $CO + {H_2}$ and producer gas is $CO$.

Note:
Water gas is used in combination with producer gas to generate fuel gas and in the Fischer-tropsch process while producer gas is used in furnace and gas engines. You can more easily transmit producer gas than solid fuel.