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 - Wikipedia
网页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 …
Boiling Point Definition, Temperature, and Examples - Science …
网页2022年5月25日 · The simple definition of boiling point is that it is the temperature at which a liquid boils. For example, the boiling point of water at sea level is 100 °C or 212 °F. The formal definition in science is that boiling point is the temperature where the vapor pressure of a liquid equals the vapor pressure of its environment.
Boiling Points - Chemistry LibreTexts
网页2023年1月23日 · The melting points of crystalline solids cannot be categorized in as simple a fashion as boiling points. The distance between molecules in a crystal lattice is small and regular, with intermolecular forces serving to constrain the motion of the molecules more severely than in the liquid state.
6.2A: Overview of Boiling Point - Chemistry LibreTexts
网页A compound's boiling point is a physical constant just like melting point, and so can be used to support the identification of a compound. Unlike melting points however, boiling points are not generally used as a gauge of purity.
10.12: Boiling Point - Chemistry LibreTexts
网页2023年7月15日 · 10.12: Boiling Point. When we heat a liquid until it boils, the bubbles that form inside the liquid consist of pure vapor. If the liquid is well stirred while boiling occurs, the vapor in the bubbles will be in equilibrium with the liquid and will have a pressure equal to the vapor pressure at the boiling temperature.
Definition of Boiling Point in Chemistry - ThoughtCo
网页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 | CHEM101 ONLINE: General Chemistry - Lumen …
网页The boiling point is the temperature at which the vapor pressure of a liquid is equal to the external pressure. As the altitude increases, the boiling point decreases. Practice. What is the boiling point of water in degrees Celsius and Fahrenheit? How does the boiling point of water change at altitudes below sea level?
Boiling - Purdue University
网页The normal boiling point of ethyl alcohol is 78.5 o C (i.e., a liquid at room temperature). Although dipole-dipole forces and London dispersion forces also exist between ethyl alcohol molecules, the strong hydrogen bonding interactions are responsible for the much higher normal boiling point compared to methyl ether.
Boiling Point - Physics Book - gatech.edu
网页2016年11月27日 · Boiling point is a key property of matter in which the vapor pressure of a liquid equals the pressure around the liquid and the liquid turns into a vapor. The boiling point of a substance is highly dependent on the environment around the substance.
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