Why is the meniscus concave in water quizlet?

Why is the meniscus concave in water quizlet?

In a polar liquid such as water, the concave shape of the meniscus shows that water’s adhesive forces toward the glass are stronger than its cohesive forces. A nonpolar liquid such as mercury shows a convex meniscus.

Why water attains concave meniscus whereas mercury attains convex meniscus give reasons?

In case of water, the adhesive forces in the molecules of glass and water are stronger than the cohesive forces in the water molecules. Therefore, the meniscus of water is concave. However, in mercury, th cohesive force are stronger than the adhesive forces. As a result, its meniscus is convex.

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Is water concave or convex?

Water meniscus is convex, mercury menisucs is concave This occurs with water and a glass tube.

What is the meniscus of water quizlet?

: A meniscus is a curve in the surface of a molecular substance(water) when it touches another material. Meniscus happen because of adhesion and has to do with waters fairly high surface tension.

Are water molecules adhesive?

Essentially, cohesion and adhesion are the “stickiness” that water molecules have for each other and for other substances. A water drop is composed of water molecules that like to stick together-an example of the property of cohesion.

Which liquids have a concave meniscus?

Water-based fluids like sap, honey, and milk also have a concave meniscus in glass or other wettable containers. Conversely, a convex meniscus occurs when the particles in the liquid have a stronger attraction to each other than to the material of the container.

What is convex vs concave?

Concave means “hollowed out or rounded inward” and is easily remembered because these surfaces “cave” in. The opposite is convex meaning “curved or rounded outward.” Both words have been around for centuries but are often mixed up. Advice in mirror may be closer than it appears.

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Why does water stick to the side of a glass?

Angle and speed. When the angle between vertical direction and the glass wall is small, surface tension is stronger and the component of gravity perpendicular to the glass wall is small; consequently, water sticks to the outside surface of the container (or in other words, runs down the side of the container).

What is water meniscus?

A meniscus is a curve in the surface of a molecular substance (water, of course) when it touches another material. With water, you can think of it as when water sticks to the inside of a glass.

Why is water highly cohesive?

Cohesion refers to the attraction of molecules for other molecules of the same kind, and water molecules have strong cohesive forces thanks to their ability to form hydrogen bonds with one another. Thus, the water molecules at the surface form stronger interactions with the neighbors they do have.

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What is water polarity?

Polarity: Although the net charge of a water molecule is zero, water is polar because of its shape. The hydrogen ends of the molecule are positive and the oxygen end is negative. This causes water molecules to attract each other and other polar molecules.