Combustion, or burning, [1] 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.

By convention, the (higher) heat of combustion is defined to be the heat released for the complete combustion of a compound in its standard state to form stable products in their standard states: hydrogen is converted to water (in its liquid state), carbon is converted to carbon dioxide gas, and nitrogen is converted to nitrogen gas.

Spontaneous combustion or spontaneous ignition is a type of combustion which occurs by self-heating (increase in temperature due to exothermic internal reactions), followed by thermal runaway (self heating which rapidly accelerates to high temperatures) and finally, autoignition. [1]

Combustion is a reaction of a fuel with an oxidant to give out heat. The release of heat can produce light in the form of a flame. Car engines and rocket engines both work by combustion. Combustion in a Ferrari car motor is different from combustion in a rocket engine.

Jan 31, 2025 · combustion, a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame.

Sep 21, 2022 · A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. Combustion reactions must involve O2 O 2 as one reactant. The combustion of hydrogen gas produces water vapor: 2H2(g) +O2(g) → 2H2O(g) 2 H 2 (g) + O 2 (g) → 2 H 2 O (g)

Jan 13, 2020 · Combustion is a chemical reaction that occurs between a fuel and an oxidizing agent that produces energy, usually in the form of heat and light. Combustion is considered an exergonic or exothermic chemical reaction. It is also known as burning. Combustion is considered to be one of the first chemical reactions intentionally controlled by humans.

Apr 3, 2024 · Combustion is a chemical process that involves the rapid reaction of a substance with oxygen, releasing heat and light. The substance that reacts is called the fuel, and the source of oxygen is called the oxidizer. The fuel can be a solid, liquid, or gas, but it …

Combustion is a chemical reaction that occurs when a fuel, such as a hydrocarbon, reacts with an oxidizing agent, typically oxygen, to release heat, light, and various reaction products. This exothermic process is a fundamental concept in understanding the properties and behavior of alkanes, a class of saturated hydrocarbons.

Jan 2, 2025 · combustion (countable and uncountable, plural combustions) The act or process of burning. A process whereby two chemicals are combined to produce heat. A process wherein a fuel is combined with oxygen, usually at high temperature, releasing heat. (dated or archaicizing, figuratively) Violent agitation, tumult.