Which three elements are required for combustion of any fuel?

The combustion of any fuel requires three essential elements, which are oxygen, heat, and fuel.

Oxygen is necessary as it is the reactant that supports the combustion process. Most combustion reactions occur in the presence of atmospheric oxygen, which combines with the fuel to produce heat and light during combustion.

Heat is required to initiate the combustion reaction. It raises the temperature of the fuel and oxygen mixture to the point where the fuel's ignition temperature is reached, allowing combustion to commence.

Fuel, which can be in the form of gas, liquid, or solid, is the substance that undergoes combustion. It provides the energy that fuels the reaction and produces combustion products such as carbon dioxide and water.

Together, these three elements form what is often referred to as the "fire triangle," which illustrates that the presence of all three components is necessary for combustion to occur. Removing any one of these elements will extinguish a fire, demonstrating their critical roles in the combustion process.