Boiling - Wikipedia
网页Boiling occurs when a liquid is heated to its boiling point, so that the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere. Boiling and evaporation are the two main forms of liquid vapourization.
Boiling - Chemistry LibreTexts
网页2023年1月30日 · Boiling is the process by which a liquid turns into a vapor when it is heated to its boiling point. The change from a liquid phase to a gaseous phase occurs when the vapor pressure of the liquid is equal to the atmospheric pressure exerted on the liquid.
Boiling | Definition, Cooking, & Methods | Britannica
网页boiling, the cooking of food by immersion in water that has been heated to near its boiling point (212 °F [100 °C] at sea level; at higher altitudes water boils at lower temperatures, the decrease in boiling temperature being approximately one degree Celsius for …
Boiling point | Definition, Examples, Temperature, & Facts
网页Boiling point, temperature at which the pressure exerted by the surroundings upon a liquid is equaled by the pressure exerted by the vapor of the liquid; under this condition, addition of heat results in the transformation of the liquid into its vapor without raising the temperature.
Boiling Point Definition, Temperature, and Examples - Science …
网页2022年5月25日 · The normal boiling point or the atmospheric boiling point is the boiling point at 1 atmosphere of pressure or sea level. The standard boiling point, as defined by the IUPAC in 1982, is the temperature at which boiling occurs when the pressure is 1 bar.
Boiling - Purdue University
网页Boiling. A liquid boils at a temperature at which its vapor pressure is equal to the pressure of the gas above it. The lower the pressure of a gas above a liquid, the lower the temperature at which the liquid will boil. The Macroscopic View.
Boiling Definition in Chemistry - ThoughtCo
网页2019年9月5日 · Boiling is defined as a phase transition from the liquid state to the gas state, usually occurring when a liquid is heated to its boiling point. At the boiling point, the vapor pressure of the liquid is the same as the external pressure acting upon its surface.
Boiling, Condensation & Evaporation - Mini Physics
网页Boiling is the change of state from a liquid to a gas. Boiling of a pure substance occurs at a particular constant temperature called boiling point or boiling temperature. During boiling, the molecules need energy to overcome the intermolecular forces that hold them together and to increase the separation between the molecules.
13.9: Boiling - Chemistry LibreTexts
网页2022年9月21日 · The normal boiling point is the temperature at which the vapor pressure of the liquid is equal to standard pressure. Because atmospheric pressure can change based on location, the boiling point of a liquid changes with the external pressure.
10.12: Boiling Point - Chemistry LibreTexts
网页2023年7月15日 · If this pressure is the standard pressure of 1 atm (101.3 kPa), then the temperature at which the liquid boils is referred to as its normal boiling point. This is the boiling point which is usually quoted in chemical literature.