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How to justify the shape of liquid miniscus in terms of angle of contact.Give equations to justify.

How to justify the shape of liquid miniscus in terms of angle of contact.Give equations to justify.

Grade:11

1 Answers

Arun
25750 Points
6 years ago
Meniscus is the curve of the upper surface in any liquid. It can be convex with is the curving outward or bulge outward. Concave is just the oppositeCohesion is the ability of water molecules to cling to each other because of hydrogen bonds.Adhesion is the ability of water to cling to other polar surfaces, a result of water`s polarity.So when water is placed into a glass container surface tension attracts the water molecules to the sides of the glass and becausee adhesion overcomes the forces of cohesion the water climbs the glass slightly.The reason this does not happen with Mercury because the opposite of water happens the forces of cohesion are stringer than its attraction to the glass, it`s aadhesion. It have the opposite effect meaning it will be concave.

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