Melting point: the temperature at which a solid become a liquid. Boiling point: the temperature at which a liquid become a gas.
Water will become a gas at approximately that temperature (the temperature may vary, depending mainly on the pressure).
Polythene, also known as polyethylene, is a type of plastic that exists as a solid at room temperature. It is not a gas in its standard form, but can be converted into a gas when heated to high temperatures.
The process of transforming water to gas in room temperature is evaporation. Some fraction of water molecules obtain enough energy to change into vapor.
Solubilty of gases in water increase when the temperature decrease, For ammonia you can see an infographics at this link.
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By lowering the temperature on increasing the pressure.
A gas become a liquid after cooling to the adequate temperature - the condensation point.
Melting point: the temperature at which a solid become a liquid. Boiling point: the temperature at which a liquid become a gas.
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A liquid or gas become a solid.
Water will become a gas at approximately that temperature (the temperature may vary, depending mainly on the pressure).
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Yes - low temperature and/or high pressure are needed, how extreme of either depends on the gas.
Can be both, depends the temperature, if you cool it a lot it become liquid, at the atmosphere temperature will be a gas !. You can use it to inflate your tires i.e., at this temperature it will be a gas.
By cooling it. Removing heat. Lowering the temperature. etc.
At normal pressure, all elements become gases by the time the temperature reaches 5869K. All but Helium become ordinary solids at the temperature is reduced. So there is nothing peculiar about carbon being a solid and a gas.