A propellant is a material that is used to move an object by applying a motive force.
This may or may not involve a chemical reaction.
It may be a gas, liquid, plasma, or, before the chemical reaction, a solid.
Common chemical propellants consist of a fuel, like gasoline, jet fuel and rocket fuel, and an oxidizer.
In aerosol spray cans, the propellant is simply a pressurized vapour in equilibrium with its liquid.
As some gas escapes to expel the payload, more liquid evaporates, maintaining an even pressure.
Projectile A projectile is any object sent through space by the application of a force. In a general sense, even a football or baseball may be considered a ... >
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Rocket The traditional definition of a rocket is a vehicle, missile or aircraft which obtains thrust by the reaction to the ejection of fast moving fluid ... >
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Model rocket Model rocketry is a hobby similar to building model airplanes. In the hobby today, there are two distinct areas of rocket activity: amateur (or ... >
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Weapon A weapon is a tool which can be used during combat to kill or incapacitate, to destroy property, or to otherwise render resources non-functional or ... >
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Methanol Methanol, also known as methyl alcohol or wood alcohol, is a chemical compound with chemical formula CH3OH. It is the simplest alcohol, and is a ... >
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Water rocket Water rockets are like their model rocket cousins, except that these are powered by a combination of water and air pressure instead of a chemical ... >
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Haloalkane The haloalkanes (also known as Halogenoalkanes) are a group of chemical compounds, consisting of alkanes, such as methane or ethane, with one or more ... >
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