FSC239Y5 Lecture Notes - Lecture 5: Deflagration, Exothermic Process, Cleanroom
Document Summary
What is an explosion: sudden release of a large amount of energy, by propulsion of debris. Types of explosions: atomic explosions, nuclear, emit infrared and uv radiation, electrical explosions: high energy arcing causes rapid vaporization of solids and expansion of gases, physical explosions: rapid change in physical state. Potential energy kinetic energy: sunrise propane, north york. Propane caught fire, heat from fire from one tank, pressure became so big physical explosion: chemical explosions, extremely rapid chemical reaction, exothermic (release of heat, generation of large quantities of gas, sock and loud noise accompany explosions. What is an explosive: any chemical containing a high amount of potential energy that is capable of undergoing rapid chemical reaction, no external reactants required, such as atmospheric oxygen. (there is an internal source of oxygen) Rust (iron oxide) very slow days/weeks to react. Combustion fuel + atmospheric oxygen + ignition source. Deflagration rapid combustion reaction front in medium, proceeds below the speed of sound.
