Evaporation: Difference between revisions
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<onlyinclude>'''Evaporation''' is a [[phase change]] of a [[liquid]] to a [[gas]]eous state.</onlyinclude> It occurs when [[molecule]]s in the liquid have enough [[kinetic energy]] to escape the surface of the liquid - therefore it is a surface phenomena, not to be confused with the volume phenomena of [[boiling point|boiling]].<ref>Hyperphysics, ''Evaporation'' [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/vappre.html#c2</ref> Evaporation is a cooling mechanism because the escaping [[molecule]]s require [[heat]] from the rest of the liquid, thereby leaving the remaining liquid cooler. This is used by the human body in the process of perspiration in order to cool people down which can be read about on [http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/sweat.html#c1 Hyperphysics]. | <onlyinclude>'''Evaporation''' is a [[phase change]] of a [[liquid]] to a [[gas]]eous state.</onlyinclude> It occurs when [[molecule]]s in the liquid have enough [[kinetic energy]] to escape the surface of the liquid - therefore it is a surface phenomena, not to be confused with the [[volume]] phenomena of [[boiling point|boiling]].<ref>Hyperphysics, ''Evaporation'' [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/vappre.html#c2</ref> Evaporation is a cooling mechanism because the escaping [[molecule]]s require [[heat]] from the rest of the liquid, thereby leaving the remaining liquid cooler. This is used by the human body in the process of perspiration in order to cool people down which can be read about on [http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/sweat.html#c1 Hyperphysics]. | ||
[http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/vappre.html#c2 Click here] to learn more about how evaporation works! | [http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/vappre.html#c2 Click here] to learn more about how evaporation works! | ||
Revision as of 20:05, 3 September 2015
Evaporation is a phase change of a liquid to a gaseous state. It occurs when molecules in the liquid have enough kinetic energy to escape the surface of the liquid - therefore it is a surface phenomena, not to be confused with the volume phenomena of boiling.[1] Evaporation is a cooling mechanism because the escaping molecules require heat from the rest of the liquid, thereby leaving the remaining liquid cooler. This is used by the human body in the process of perspiration in order to cool people down which can be read about on Hyperphysics.
Click here to learn more about how evaporation works!
References
- ↑ Hyperphysics, Evaporation [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/vappre.html#c2