At it boiling point: boiling temperature AND pressure:
Water boiling at 100oC at 100 kPa (1 atm.)
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.
By lowering the temperature on increasing the pressure.
A liquid or gas become a solid.
That's the boiling point, and it depends on a lot of different factors.
The gas will condense and turn into a liquid when it is in a solid container at low temperature. The lower temperature reduces the energy of the gas molecules, causing them to come closer together and form a liquid state.
Melting (freezing) point: the temperature when the solid metal become a liquid. Boiling point: the temperature when the liquid metal become a 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.
A liquid can change to a gas, by heating up and evaporating into the air.
If the temperature is increased high enough to increase the value pressure of the liquid to that of the atmospheric pressure, the liquid will boil and vaporize to become a gas.
Saturated gas temperature is the temperature at which a gas would be in equilibrium with the liquid phase of the gas (or with the liquid phase of a component of the gas if it was a gas mixture).