Changes

[[File:lighterstill.jpg]][[File:BoilingRedSpring.jpg|right|frame]]

[[File:lighterstill.jpg]][[File:BoilingRedSpring.jpg|right|frame]]

*[http://en.wikipedia.org/wiki/14th_century 14th Century]

*[https://en.wikipedia.org/wiki/14th_century 14th Century]

==Definitions==

==Definitions==

*1: a : heated to the [http://en.wikipedia.org/wiki/Boiling_point boiling point]

*1: a : heated to the [https://en.wikipedia.org/wiki/Boiling_point boiling point]

:b : torrid <a boiling sun>

:b : torrid <a boiling sun>

2: [[intense]]ly agitated <a boiling sea> <boiling with [[anger]]>  

2: [[intense]]ly agitated <a boiling sea> <boiling with [[anger]]>  

==Description==

==Description==

'''Boiling''' is the rapid [http://en.wikipedia.org/wiki/Vaporization vaporization] of a [[liquid]], which occurs when a liquid is [[heat]]ed to its [http://en.wikipedia.org/wiki/Boiling_point boiling point], the [[temperature]] at which the [http://en.wikipedia.org/wiki/Vapor_pressure vapor pressure] of the liquid is [[equal]] to the [[pressure]] exerted on the liquid by the [[surrounding]] [[environmental]] pressure. While below the boiling point a [[liquid]] evaporates from its [[surface]], at the [http://en.wikipedia.org/wiki/Boiling_point boiling point] vapor bubbles come from the bulk of the liquid. For this to be possible, the vapor pressure must be sufficiently high to win the atmospheric pressure, so that the bubbles can be "inflated". Thus, the [[difference]] between evaporation and boiling is "[[mechanical]]", rather than thermodynamical. The boiling point is lowered when the [[pressure]] of the [[surrounding]] [[atmosphere]] is reduced, for example by the use of a [http://en.wikipedia.org/wiki/Vacuum_pump vacuum pump] or at high altitudes. Boiling occurs in [[three]] characteristic [[stages]], which are nucleate, transition and film boiling. These stages generally take place from low to high heating surface temperatures, respectively.[http://en.wikipedia.org/wiki/Boiling]

'''Boiling''' is the rapid [https://en.wikipedia.org/wiki/Vaporization vaporization] of a [[liquid]], which occurs when a liquid is [[heat]]ed to its [https://en.wikipedia.org/wiki/Boiling_point boiling point], the [[temperature]] at which the [https://en.wikipedia.org/wiki/Vapor_pressure vapor pressure] of the liquid is [[equal]] to the [[pressure]] exerted on the liquid by the [[surrounding]] [[environmental]] pressure. While below the boiling point a [[liquid]] evaporates from its [[surface]], at the [https://en.wikipedia.org/wiki/Boiling_point boiling point] vapor bubbles come from the bulk of the liquid. For this to be possible, the vapor pressure must be sufficiently high to win the atmospheric pressure, so that the bubbles can be "inflated". Thus, the [[difference]] between evaporation and boiling is "[[mechanical]]", rather than thermodynamical. The boiling point is lowered when the [[pressure]] of the [[surrounding]] [[atmosphere]] is reduced, for example by the use of a [https://en.wikipedia.org/wiki/Vacuum_pump vacuum pump] or at high altitudes. Boiling occurs in [[three]] characteristic [[stages]], which are nucleate, transition and film boiling. These stages generally take place from low to high heating surface temperatures, respectively.[https://en.wikipedia.org/wiki/Boiling]

[[Category: Physics]]

[[Category: Physics]]