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.
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.
By cooling it. Removing heat. Lowering the temperature. etc.
A liquid can change to a gas, by heating up and evaporating into the air.
A gas cools off to become a liquid in a process known as condensation. This occurs when the temperature of the gas drops below its condensation point, causing the gas particles to slow down and come together to form a liquid.