Frequently Asked Questions - Combustion
Combustion is a chemical reaction in which a substance reacts with oxygen, releasing heat and light. It is also known as burning.
Combustion requires three main conditions: a combustible substance, oxygen, and a source of ignition (heat).
Oxygen is essential for combustion as it supports the chemical reaction by combining with the combustible material and releasing energy in the form of heat and light.
During combustion, the bonds between atoms in the fuel break, and new bonds are formed with oxygen. This releases energy in the form of heat and light.
In complete combustion, a fuel burns in the presence of sufficient oxygen, producing carbon dioxide and water as the main products. In incomplete combustion, insufficient oxygen leads to the formation of carbon monoxide and soot.
Common fuels used in combustion include fossil fuels like coal, petroleum, and natural gas, as well as biofuels like wood, agricultural waste, and methane.
Combustion reactions are essential for energy production in various forms, such as heat, light, and mechanical work. They are also used in engines, stoves, heaters, and other devices.
The wick of a candle absorbs the liquid wax and draws it upwards. As the wax reaches the flame, it vaporizes and combines with oxygen to undergo combustion, producing a flame.
During combustion, energy is transferred from the fuel to the surroundings in the form of heat and light. This energy transfer is important for various practical applications.
Combustion can be controlled by regulating the supply of oxygen, adjusting the temperature, and using proper ignition sources to ensure safe and efficient burning.