Descripción
Surface tension is a property of liquids. Liquids have a limited ability – called surface tension - to resist an external force. For example, when a liquid forms a lens-shaped meniscus in a gradeuated cylinder, the surface tension of the liquid is resisting the force of gravity. Because of surface tension, we observe objects float on liquids and insects walk on the surface of lakes, even though they may be far denser than the liquid. Surface tension is the product of Van der Waal forces. Since Van der Waal forces exist between the molecules of a single substance such as water, they are called inter-molecular forces. This force causes the molecules on the surface of a liquid to cling together, almost as if they were acting like a sheet of plastic wrap.How do temperature and salinity affect surface tension?
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Autores
Autor Cy Ashley Webb
Categorías Ficha para imprimir, Experimento/Práctica, 12-14 años, 10-12 años, Science Fair - Education, Ciencias de la Tierra y Medioambiente, Inglés add
Etiquetas add
Fecha de publicación 27 / 08 / 2020
Licencia Se respeta la licencia original del recurso.
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Effect of Temperature and Salinity on Surface Tension of Water
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