Boiling point - Wikipedia
The boiling point of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid [1] [2] and the liquid changes into a vapor. The boiling point of a liquid varies depending upon the surrounding environmental pressure.
Boiling point | Definition, Examples, Temperature, & Facts ...
2024年11月15日 · 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 …
Boiling Point of Water – What Temperature Does Water Boil?
2020年8月6日 · The boiling point of water is the temperature where the liquid’s vapor pressure equals atmospheric pressure. The reason boiling point changes with elevation is because atmospheric pressure changes. The effect is noticeable when you compare boiling point in a valley compared to a mountain top.
Boiling Point Definition, Temperature, and Examples
2022年5月25日 · The standard boiling point, as defined by the IUPAC in 1982, is the temperature at which boiling occurs when the pressure is 1 bar. The standard boiling point of water is 99.61 °C at 1 bar of pressure.
Melting Point and Boiling point- Definition, Determination ...
The boiling point is the temperature for a particular liquid to boil at. For example, the boiling point for water, at a pressure of 1 atm, is 100 degrees Celsius. A liquid’s boiling point depends upon the liquid ‘s temperature, atmospheric pressure, and vapor pressure. Recommended Videos
Definition of Boiling Point in Chemistry - ThoughtCo
2019年5月6日 · The boiling point is the temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid. Therefore, the boiling point of a liquid depends on atmospheric pressure. The boiling point becomes lower as the external pressure is reduced.
Boiling Point of Gases, Liquids & Solids | Toolbox | AMERICAN ...
What is a boiling point? The boiling point of a substance is the temperature at which the vapor pressure of the liquid is equal to the surrounding atmospheric pressure, thus facilitating transition of the material between gaseous and liquid phases.
Boiling point - Simple English Wikipedia, the free encyclopedia
The boiling point of a substance is the temperature at which the substance boils, or enters a state of rapid evaporation. For pure water this is 100° Celsius or 212° Fahrenheit , at standard pressure .
Boiling - Chemistry LibreTexts
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 - Wikipedia
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.