Adsorption: Difference between revisions
Content deleted Content added
Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.7 |
m →top: clean up, eval 1 template: hyphenate params (1×); |
||
| Line 2: | Line 2: | ||
[[File:Langmuir izoterma.png|thumb|300px|Particles adsorbed to a surface.]] |
[[File:Langmuir izoterma.png|thumb|300px|Particles adsorbed to a surface.]] |
||
'''Adsorption''' is the sticking of [[atom]]s or [[molecule]]s to a [[surface]] (called "adsorbent").<ref>{{cite web |url=http://www.brownfieldstsc.org/glossary.cfm?q=1 |title=Glossary |publisher=The Brownfields and Land Revitalization Technology Support Center | |
'''Adsorption''' is the sticking of [[atom]]s or [[molecule]]s to a [[surface]] (called "adsorbent").<ref>{{cite web |url=http://www.brownfieldstsc.org/glossary.cfm?q=1 |title=Glossary |publisher=The Brownfields and Land Revitalization Technology Support Center |access-date=2009-12-21 |archive-date=2008-02-18 |archive-url=https://web.archive.org/web/20080218094403/http://www.brownfieldstsc.org/glossary.cfm?q=1 |url-status=dead }}</ref> The particles which get stuck on can be from a [[gas]], [[liquid]] or a [[solution|dissolved]] [[solid]]. An example would be the way water sticks to the surface of [[sand]] grains on a [[beach]], or to particles of soil. |
||
The exact nature of the [[force]] which holds them on varies according to the nature of the surface and the adsorbed molecules. The force may be a weak [[physics|physical]] force, or weak [[chemical bond]]s, but strong enough to keep the layer of molecules stuck on. Supplying more [[heat]] usually breaks the bonds and causes the adsorbed molecules to evaporate. Only "free water" (that is not trapped inside solid particles) can [[Evaporation|evaporate]]. |
The exact nature of the [[force]] which holds them on varies according to the nature of the surface and the adsorbed molecules. The force may be a weak [[physics|physical]] force, or weak [[chemical bond]]s, but strong enough to keep the layer of molecules stuck on. Supplying more [[heat]] usually breaks the bonds and causes the adsorbed molecules to evaporate. Only "free water" (that is not trapped inside solid particles) can [[Evaporation|evaporate]]. |
||
Latest revision as of 12:45, 28 May 2021
Adsorption is the sticking of atoms or molecules to a surface (called "adsorbent").[1] The particles which get stuck on can be from a gas, liquid or a dissolved solid. An example would be the way water sticks to the surface of sand grains on a beach, or to particles of soil.
The exact nature of the force which holds them on varies according to the nature of the surface and the adsorbed molecules. The force may be a weak physical force, or weak chemical bonds, but strong enough to keep the layer of molecules stuck on. Supplying more heat usually breaks the bonds and causes the adsorbed molecules to evaporate. Only "free water" (that is not trapped inside solid particles) can evaporate.
References
[change | change source]- ↑ "Glossary". The Brownfields and Land Revitalization Technology Support Center. Archived from the original on 2008-02-18. Retrieved 2009-12-21.
