“An explosion is a rapid expansion in volume associated with an extreme outward release of energy, usually with the generation of high temperatures and release of high-pressure gases… A conflagration is a large fire.” What suddenly increases is temperature, pressure, energy and material volume, thus making explosion and conflagration destructive. Flammable solids (especially dusts or particulate solids), liquids, and gases are most sources of explosion. There are three types of explosions, namely CHEMICAL EXPLOSION, MECHANICAL EXPLOSION, and NUCLEAR EXPLOSION.
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