The boiling point. The normal boiling point, which is usually the one listed in reference sources, is when the liquid is boiling at 1 atmospheres of pressure. It is also known as evaporation.
there is no particular point which gas changes to liquid, because all substances have different points where gas changes to liquid. Water vapor changes to liquid at 100 degrees Celsius
A substance changes from the liquid state to the gas state when enough heat is added for the temperature to be equal or greater than its boiling point. Example: Water begins turning into a gas when it reaches 100 degrees C, which is the boiling point of water
the temperature at which a liquid turns into a gas is called the boiling point.
The point at which a liquid becomes a gas is the boiling point. The point at which a gas becomes a liquid is still called the boiling point. A solid going straight to gas without passing through a liquid state is called sublimation. Dry Ice solid CO2 is a substance that that sublimes.
Solids changing to liquids are melting Liquids changing to solids are freezing Solids changing to gas are subliming Liquids changing to gas are boiling Gases changing to liquids are condensing.