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A convex meniscus does indicate strong cohesion, and at least stronger cohesion than adhesion.
This is because of physics. A cohesive substance naturally attempts to form a sphere. That's the easiest way to think about I suppose. The substance tries to move closer to move of the substance as best it can.
What else can I help you with?
Why is water meniscus convex when the container is fully filled?
The meniscus of water is convex when the container is fully filled because of the adhesive forces between the water molecules and the container material overpowering the cohesive forces between the water molecules. This causes the water to climb up the container walls, creating a convex shape.
Why does a meniscus create a curved line in a cylinder?
There are two principles you need to understand here called adhesion and cohesion. Adhesion is how much a substance sticks to another substance; cohesion is how much a substance sticks to itself. Water's adhesive forces are stronger than its cohesive forces which cause it to stick to the walls of a container to create an downward meniscus.
What is The meniscus composed of?
Meniscus is not composed of anything its a physical properties due to surface tension of liquids. It is dependant on the: cohesive forces - binds similar molecules together. adhesive forces - bind a substance to a surface. Water for example in a glass tube the meniscus is U-shaped, we say, that the adhesive forces between the water and glass are greater, than the cohesive forces between water molecule, but for mercury, the meniscus is curved downward therefore we would say ..... One other thing in narrow tubes the rise of liquids is called capillary action.
Which element forms a reverse meniscus?
Mercury is an element that forms a reverse meniscus. This is because the cohesive forces between mercury molecules are stronger than the adhesive forces between mercury and the container, causing it to pull away from the container edges and form a concave meniscus.
Why is mercury curved upward?
The meniscus (plural: menisci, from the Greek for "crescent") is the curve in the upper surface of a liquid to the surface of the container or another object. It can be either convex or concave. A convex meniscus occurs when the molecules have a stronger attraction to each other (cohesion) than to the material of the container (adhesion). This may be seen between mercury and glass in barometers and thermometers. Conversely, a concave meniscus occurs when the molecules of the liquid attract those of the container's, causing the surface of the liquid to cave downwards. This can be seen in a glass of water. One can over-fill a glass with mercury and produce a convex meniscus that rises above the top of the glass, due to the vacuum created with the airtight substance.
Why does meniscus of mercury curve in opposite directions?
The meniscus of mercury curves in opposite directions depending on the container it is in due to the difference in adhesive and cohesive forces. In a glass container, adhesive forces dominate causing a concave meniscus, while in a steel container, cohesive forces dominate causing a convex meniscus. The direction of the curvature is determined by the balance of these forces.
Why does a meniscus occur?
A meniscus occurs due to the adhesive and cohesive forces between a liquid and a solid surface. The curvature of the meniscus is caused by the differing surface tensions at the interface of the liquid and solid.
Why is water meniscus convex when the container is fully filled?
The meniscus of water is convex when the container is fully filled because of the adhesive forces between the water molecules and the container material overpowering the cohesive forces between the water molecules. This causes the water to climb up the container walls, creating a convex shape.
Why does a meniscus create a curved line in a cylinder?
There are two principles you need to understand here called adhesion and cohesion. Adhesion is how much a substance sticks to another substance; cohesion is how much a substance sticks to itself. Water's adhesive forces are stronger than its cohesive forces which cause it to stick to the walls of a container to create an downward meniscus.
Is oil convex or concave?
Oil is considered to be concave when placed between two surfaces, such as in a meniscus. This is due to oil having cohesive forces that cause the liquid to curve downward between the surfaces.
Why does water form a convex surface if you slightly over fill the glass?
Water forms a convex surface when overfilled in a glass due to surface tension, caused by the cohesive forces between water molecules. This makes the water "climb" the edges of the glass, creating a convex meniscus.
When water is in a container the surface of the water is curved this curve is call?
Meniscus is the curve at the surface of a liquid in a cylinder. It is caused by the adhesive and cohesive properties of water molecules. (Meniscus was incorrectly spelled in an earlier answer as "miniscus.")
Why does water have a meniscus?
Water has a meniscus due to the cohesive forces between water molecules, which cause them to be more strongly attracted to each other than to the molecules of the container. This results in the water molecules being pulled up along the edges of the container, creating a concave or convex shape at the surface of the liquid.
Does oil form a concave or convex meniscus?
Oil forms a concave meniscus when in a glass container due to its low adhesive forces with the container surface.
Why is water or alcohol or acid have a lower meniscus while mercury have an upper meniscus?
Surface tension will attract the water solution to the molecules of the container thus lifting it up on the edges. Mercury, being much more dense has no such attraction because it is a liquid metal.Answer:It is due to what is called cohesion and adhesion. The water molecules are attracted to each other through cohesion, which is the attraction between similar particles (by polarity). Adhesion is attraction between unlike molecules. When water is placed in a glass container, the forces of adhesion overcome the forces of cohesion, and the water climbs up the glass. Conversely, the attraction between mercury atoms (cohesion) is stronger than its attraction to the glass (adhesion). Therefore, the atoms pull together and away from the glass.
What is the curve along the top of a liquids surface?
Meniscus.
What is The meniscus composed of?
Meniscus is not composed of anything its a physical properties due to surface tension of liquids. It is dependant on the: cohesive forces - binds similar molecules together. adhesive forces - bind a substance to a surface. Water for example in a glass tube the meniscus is U-shaped, we say, that the adhesive forces between the water and glass are greater, than the cohesive forces between water molecule, but for mercury, the meniscus is curved downward therefore we would say ..... One other thing in narrow tubes the rise of liquids is called capillary action.
