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capillary fall
capillary rise
capillary action
due to capillary action
deduce an expression for height of a liquid in capillary tube. also write practical applications of capillary action.
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Capillary endothelium
5
4.6
Cohesion force among the molecules of water allows for capillary action in plants.
Capillary tubes are renowned for their capillary action on liquids, i.e. they cause liquids to rise up inside them. Capillary tubes are the essence of thermometers that use a liquid indicator. In biology and the plant world, capillary tubes are fundamental to the movement of fluids through the systems of living organisms.
The rise around the edges is called the meniscus, like capillary action this is caused by the adhesion of the liquid molecules to the walls of the container. In a large bore tube like a test tube or graduated cylinder this pulls up the edge and creates a concave meniscus, in a smaller bore tube this actually pulls the liquid toward the top of the tube.