Question

¿when combustion occurs?

Answer 1

Respuesta:

Explicación:

Combustion (from the Latin combustio, -onis), 1 in the broad sense, can be understood as any relatively rapid chemical reaction, notably exothermic in nature, that develops in the gaseous or heterogeneous phase (liquid-gas, solid-gas) with or without manifestation of flames or visible radiation.2

From the point of view of classical theory, combustion refers to the oxidation reactions that take place quickly, of materials called fuels, formed mainly by carbon (C) and hydrogen (H) and in some cases by sulfur ( S), in the presence of oxygen, called the oxidizer, and with great release of heat.

From a functional point of view, combustion is the set of chemical-physical processes, by which part of the internal energy of the fuel (chemical energy) that is manifested to the outside in the form of heat is released in order to be used within from an oven or boiler. 3

From now on, everything refers to classical theory. In reality, instead of pure oxygen, the reaction occurs with the presence of air, which normally, to simplify calculations, is considered to be a composition by volume; 21% oxygen and 79% nitrogen