Question

what is combustion


ann fast ​

Answer 1

Answer:

Combustion-

↬‎ ‎‎ ‎Combustion, or burning, is a high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke.

Answer 2

Answer:

Combustion-

➼Combustion, or burning, is a high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke.

➼Combustion does not always result in fire, but when it does, a flame is a characteristic indicator of the reaction.

➼While the activation energy must be overcome to initiate combustion (e.g., using a lit match to light a fire), the heat from a flame may provide enough energy to make the reaction self-sustaining.

➼Combustion is often a complicated sequence of elementary radical reactions.

➼Solid fuels, such as wood and coal, first undergo endothermic pyrolysis to produce gaseous fuels whose combustion then supplies the heat required to produce more of them.

➼Combustion is often hot enough that incandescent light in the form of either glowing or a flame is produced.

➼A simple example can be seen in the combustion of hydrogen and oxygen into water vapor, a reaction commonly used to fuel rocket engines.

➼ This reaction releases 242 kJ/mol of heat and reduces the enthalpy accordingly (at constant temperature and pressure).