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combustion
reaction definitions
| Question | Answer |
|---|---|
| Ignition source | Any process that is capable of causing a fire or explosion. |
| Flame | A rapid, persistent chemical change that releases heat and light and is accompanied by flame |
| Pyrolysis | Decomposition or transformation of a compound caused by heat |
| Heat of combustion | The amount of heat released per unit mass or unit volume of a substance when the substance is completely burned |
| Flash point | The lowest temperature at which the vapor of a combustible liquid can be made to ignite momentarily in air. |
| Fire point | The lowest temperature at which a volatile combustible substance vaporizes rapidly enough to form above its surface an air-vapor mixture which burns continuously when ignited by a small flame. |
| Auto-ignition temperature | is the lowest temperature at which a material will ignite without an external source of ignition |
| Limits of flammability | refer to the conditions under which a mixture of a flammable material and air may catch fire or explode |
| Heat release rate | The quantity of heat released per second, divided by its volume. |
| Toxic fumes | gases that are poisonous or dangerous to people |
| Glowing and smouldering combustion | A fire that burns without a flame and spreads very slowly |
| Self heating fire | |
| self ignition | becomes ignited without an external flame |
| fuel controlled combustion | A fire that burns with its own fuel |
| ventilation controlled combustion | A fire that is controlled by ventilation that removes the harmful fumes |