Surface tension is a phenomenon in which the surface of a liquid, where the liquid is in contact with a gas, acts as a thin elastic sheet. Tension superficial del agua sobre una moneda fundacion aquae. Dispersionpolar surface tension properties of organic solids. Download as pptx, pdf, txt or read online from scribd. Usually, the higher the surface tension is, the stronger. The motivation behind this effort is to introduce elementary schoolaged children to the fundamentals of general science with a. However, here we describe how a so far unknown phenomenon, that of drastically decreasing the surface tension of surfactant solutions by lowering the solutions. Surface tension of selected solids and liquids lecture 1 8 order of magnitude estimates of surface tension can be regarded as an excess free energyunit area changes of surface tension across the periodic table reflect the variations in e coh relationship between surface and cohesive energy of metals cf. As specialists in interfacial chemistry and the worlds leading supplier of measuring instruments for surface and interfacial tension, we not only provide high quality product solutions our offer is a combination of technology and scientific consulting. It is what causes the surface of a portion of liquid to be attracted by another surface, such as that of another portion of liquid. Cohesion, adhesion, tension superficial y capilaridad. Tension superficial,densidad y viscosidad by isabela pimentel. Surface tension is an important property of the surface of a liquid. I have tried to put few demonstrations and experiments on this web site, which highlight to a good extent, the importance of surface tension effects in our daily life.
In homogeneous matter such as water, surface tension does not depend on how much the surface is already stretched, but stays always the same. If the surface is between two liquids such as water and oil, it is called interface tension. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Tension superficial trabajos documentales vintage10. If a twocomponent solution behaves as a regular one,its surface tension changes as a function of the surface composition, according to the equation derived by prigogine and defay.
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