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Will water in a paraffin wax capillary tube inserted vertically in a reservoir of water attain...

Will water in a paraffin wax capillary tube inserted vertically in a reservoir of water attain a height in the tube greater than or less than that height in the reservoir, and why ?

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Answer #1

Hope it helps.

Paraffin wax is the most popular water repellent .When paraffin wax capillary tube is inserted vertically in the water reservoir then the water level in the tube is less than the height of water level in the reservoir.

This is because of the fact that water is polar in nature and paraffin wax is non polar. So there will be weak force of adhesion (i.e force between two different molecules) between water and the wall of paraffin wax tube . Due to weak adhesion force the water level falls and can't able to rise in the paraffin wax tube.

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