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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 ...
Surface tension diagram of a liquid droplet on a solid substrate. The surface of the liquid has the shape of a ... and can be recorded as a video format. [8] ...
When a soap bubble is in contact with a solid or a liquid surface wetting is observed. On a solid surface, the contact angle of the bubble depends on the surface energy of the solid., [7] [8] A soap bubble has a larger contact angle on a solid surface displaying ultrahydrophobicity than on a hydrophilic surface – see Wetting. On a liquid ...
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).
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.
The surface tension gradient can be caused by concentration gradient or by a temperature gradient (surface tension is a function of temperature). In simple cases, the speed of the flow u ≈ Δ γ / μ {\displaystyle u\approx \Delta \gamma /\mu } , where Δ γ {\displaystyle \Delta \gamma } is the difference in surface tension and μ ...
This diagram is a retouched picture, which means that it has been digitally altered from its original version. Modifications: added red part. The original can be viewed here: Surface Tension Diagram.svg: . Modifications made by JoKalliauer.
The surface tension of a liquid directly affects its wettability. Most common liquids have tensions ranging in the tens of mJ/m 2 , so droplets of oil, water, or glue can easily merge and adhere to other surfaces, whereas liquid metals such as mercury may have tensions ranging in the hundreds of mJ/m 2 , thus droplets do not combine easily and ...