Properties of Water - Adhesion and cohesion in everyday life
Adhesion and cohesion in everyday life
The properties of adhesion and cohesion can be easily observed by watching raindrops on a windowpane. Adhesion holds the drops to the glass. Even if the window is tilted forward, some drops will cling to the underside of the pane. Cohesion can be seen if you trace the path of drops down the pane. Drops close to one another will be drawn together by cohesion, forming larger drops. Observe carefully and you will see that drops will far more readily join together than split apart. Splitting a water drop requires some energy or change to loosen the bonds that hold the molecules together.
Cohesion, as you might predict, results from the attraction of one water molecule's positive side to...
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