NATS 1575 Lecture Notes - Lecture 13: Pentaerythritol Tetranitrate, Sodium Nitrate, Gunpowder
10 Apr 2017
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Document Summary
Chemically, fire is a type of oxidation, which is the combination of oxygen with other substances to produce new substances: oxidation: is the addition of oxygen or the removal of hydrogen. Oxidation is oxygen combing with other substances: ie: methane combining with oxygen will give you fire and water. To start fire, the minimum temperature needed to spontaneously ignite fuel, known as ignition temperature, must be reached. The heat evolved when a substance burns is known as heat of combustion: important to know when heat is released it is known as an exothermic reaction. Ice is melting, ice is melting because taking up heat from around it which is an endothermic reaction: important to know: rust forming is an example of oxidation. Oxidation occurs in the body when there is alcohol in the body through enzymes: however, not all oxidation do not result in the formation of fiber.
