Non copied Reason needed ☑️
Why does Mercury not stick to glass surfaces while water does?
Answers
Answer:
It’s a matter of surface tension. The surface tension of the liquid, and the surface tension of the glass, determine how far a liquid will “spread” on glass.
It’s a matter of surface tension. The surface tension of the liquid, and the surface tension of the glass, determine how far a liquid will “spread” on glass.Mercury has a high surface tension, which restrains it to a spherical shape. Water has a much lower surface tension, and it spreads all over a glass surface that is even slightly dirty.
It’s a matter of surface tension. The surface tension of the liquid, and the surface tension of the glass, determine how far a liquid will “spread” on glass.Mercury has a high surface tension, which restrains it to a spherical shape. Water has a much lower surface tension, and it spreads all over a glass surface that is even slightly dirty.The surface tension of the glass is involved. When glass is cleaned under extreme conditions, water balls up and flows away from it. Clean glass has a different surface tension than slightly dirty glass.
Answer:
When liquid water is confined in a tube, its surface (meniscus) has a concave shape because water wets the surface and creeps up the side. Mercury does not wet glass - the cohesive forces within the drops are stronger than the adhesive forces between the drops and glass.