Answer:
CH4 + 2O2 (excess) → CO2 + 2H2O + Energy
Explanation:
Combustion of methane gas molecules in abundance of O2 can follow the above reaction, product expected carbon dioxide, water and energy only.
But, when the O2 is not sufficiently available for perfect methane combustion, then there are many other products from the methane combustion reaction in above the product with CO and C.
The molar ratio of [C]: [CO] :[CO2] will depend on the availability of O2 for combustion of methane . In the high deficiency of oxygen conditions: monoxide and black carbon will be the major products of the combustion of methane.
