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Surface tension is an important factor in the phenomenon of capillarity. Surface tension has the dimension of force per unit length, or of energy per unit area. [4] The two are equivalent, but when referring to energy per unit of area, it is common to use the term surface energy, which is a more general term in the sense that it applies also to ...
One of the useful methods to determine the dynamic surface tension is measuring the "maximum bubble pressure method" or, simply, bubble pressure method. [ 1 ] [ 2 ] Bubble pressure tensiometer produces gas bubbles (ex. air) at constant rate and blows them through a capillary which is submerged in the sample liquid and its radius is already known.
Author: Karl Hahn Subject: Illustrative diagram of surface tension forces on a needle floating on the surface of water (shown in crossection). Status: Released to public domain. Date: 30 August 2009, 21:56 (UTC) Source: Own work based on: Surface Tension Diagram.svg: Author
The Laplace pressure is the pressure difference between the inside and the outside of a curved surface that forms the boundary between two fluid regions. [1] The pressure difference is caused by the surface tension of the interface between liquid and gas, or between two immiscible liquids.
In physics, the Young–Laplace equation (/ l ə ˈ p l ɑː s /) is an algebraic equation that describes the capillary pressure difference sustained across the interface between two static fluids, such as water and air, due to the phenomenon of surface tension or wall tension, although use of the latter is only applicable if assuming that the wall is very thin.
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This image is a derivative work of the following images: File:SurftensionDiagram.png licensed with PD-user-w . 2007-09-01T14:57:35Z Karlhahn 350x192 (2130 Bytes) {{Information |Description=Author: Karl Hahn Subject: Illustrative diagram of surface tension forces on a needle floating on the surface of water (shown in crossection).
A: The bottom of a concave meniscus. B: The top of a convex meniscus. In physics (particularly fluid statics), the meniscus (pl.: menisci, from Greek 'crescent') is the curve in the upper surface of a liquid close to the surface of the container or another object, produced by surface tension.