What's the name for the temperature at which a substance changes state from a liquid to a gas?

The temperature at which a substance changes state from a liquid to a gas is called the boiling point. This is the specific temperature at which the vapor pressure of the liquid equals the surrounding pressure, allowing bubbles of gas to form within the liquid. For example, the boiling point of water at standard atmospheric pressure (1 atm) is 100 degrees Celsius (212 degrees Fahrenheit).

It’s important to note that the boiling point can change depending on the surrounding pressure. At higher altitudes, where atmospheric pressure is lower, water will boil at a temperature lower than 100 degrees Celsius. Conversely, if the pressure is increased (as in a pressure cooker), the boiling point of water will be higher.