Combustion — দহন

Definition

Combustion is a rapid reaction between a fuel and oxygen that gives out heat and light. When the fuel is a hydrocarbon — gas, petrol, kerosene, candle wax — complete combustion with plenty of air yields carbon dioxide and water vapour. With a poor oxygen supply the burn is incomplete: poisonous carbon monoxide and sooty smoke appear, which is why a smoking kerosene stove needs more air, not less. Combustion runs engines, power stations and every kitchen burner in Bangladesh.

For example

A gas stove burns methane: $\mathrm{CH_{4}}$ + $\mathrm{2\,O_{2}}$ → $\mathrm{CO_{2}}$ + $\mathrm{2\,H_{2}O}$, a clean blue flame; if the flame turns orange and smoky, it is begging for more oxygen.

Elements this touches

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