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Created page with 'File:lighterstill.jpgright|frame *Date: [http://en.wikipedia.org/wiki/19th_Century 1882] ==Definitions== *1 : a surface forming a common boundar...'
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*Date: [http://en.wikipedia.org/wiki/19th_Century 1882]
==Definitions==
*1 : a surface forming a common boundary of two bodies, spaces, or phases <an oil-water interface>
*2 a : the place at which independent and often unrelated systems meet and act on or communicate with each other <the man-machine interface>
:b : the means by which interaction or communication is achieved at an interface
==Description (Chemistry)==
An '''interface''' is a [[surface]] forming a common [[boundary]] among two different [[phases]], such as an insoluble solid and a liquid, two immiscible liquids or a liquid and an insoluble gas. The importance of the interface depends on which type of [[system]] is being treated: the bigger the quotient area/volume, the more [[effect]] the surface [[phenomena]] will have. Therefore interfaces will be considered in [[systems]] with big area/volume ratios, such as [http://en.wikipedia.org/wiki/Colloid colloids].

Interfaces can be [[Sphere|spherical]] or flat, so they can be considered to be always spherical with [[finite]] or [[infinite]] radius. For example oil droplets in a salad dressing are spherical but the interface between water and air in a glass of water is mostly flat.

Surface tension {see [[Superficial]]) is the [[function]] which rules interface [[processes]].

Interfaces may cause various [[optical]] [[phenomena]], such as [[refraction]]. Optical lenses serve as an example of a [[practical]] [[application]] of the interface between glass and air.

One important interface is the gas liquid interface between aerosols and other atmospheric [[molecules]].

[[Category: Chemistry]]
[[Category: General Reference]]

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