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Cohesion the force of attraction by which the molecules of a solid or liquid tend to remain together (clinging power of the same substance)
Adhesion: intermolecular attraction between substances that are unlike and in surface contact, causing them to cling together (like glue to paper)
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Why do beads of water often from on a slippery surface such as a freshly waxed car?
Short answer:Water beads form on a surface when the cohesion of the water molecules with each other is much greater than the adhesion of the water to the surface. Water cohesion results in water having high surface tension and hence a strong tendency to form spherical droplets. Water adhesion to waxy or oily materials is small. The result is a tendency to form water beads.This phenomena, or the lack there of, is called wetting and has been studied for centuries. The cohesion of a liquid is directly related to the surface tension of a liquid. Water, which has a high surface tension, readily forms beads on materials which are hydrophobic, i.e. materials with a small adhesion to water. The waxed surface of a car has small adhesion and so water beads form regularly. The raw painted surface of the car would have more adhesion with water and so greater wettability. The opposite extreme, the tendency of a liquid to wet a surface due to strong adhesion, is critical to a situation such as lubrication where the liquid should coat the solid surface. It is the two properties combined, adhesion and cohesion, which determine wettabilty and beading.Long Answer:When one speaks of water beading on a surface, one means the formation of small droplets of water on a surface. This phenomena depends not only on the properties of water and the surface, but most importantly on the property of the interaction of the water with the surface. In science, this is the topic of "wetting" and one describes the tendency in terms of the "wettability" of a particular combination of liquid and surface. Beading is a manifestation of low wettability or little wetting.A liquid droplet on a surface tends to form a more nearly spherical shape if the forces of attraction (or cohesion) between the liquid molecules is strong and the forces between the liquid and and the solid (adhesion) are weak. We associate strong cohesive forces of a liquid with a high surface tension and a high surface tension opposes wetting. Water is an example of a liquid with high surface tension.The interaction of water with a surface like wax or plastic or Teflon is an example weak adhesion or weak forces between the liquid molecules and solid surface. Thus, wetting is highly unfavorable and formation of nearly spherical droplets is favored and we say water beads. Surfaces like metal or glass have somewhat stronger adhesive forces so wetting is greater and droplets are less spherical.
What is the difference between a shape an a solid shape?
Draw the outline of a circle O it is a shape. Now colour it in, and it becomes a solid shape.
How does shape affect distance?
Yes it does if the object was a different shape it would move different it depends if it goes further or not as far depending on where you are doing it.
Can the shape of an object be different but the mass be the same?
Yes.
How do you tell the difference between plexiglass and glass?
By the shape
Which of the following describes cohesive forces of water?
Adhesion and cohesion are physical properties of water that are caused by water's polarity. This, in turn, is caused by the shape of the water molecule, which forms a partial difference in charge across the length of that molecule, causing intermolecular attractions between water molecules. It also explains surface tension, the fact that water expands when it freezes, and 6-sided snowflakes.
What is territorial morphology?
A state's geographical shape, which can affect its spatial cohesion and political viability.
Why do beads of water often from on a slippery surface such as a freshly waxed car?
Short answer:Water beads form on a surface when the cohesion of the water molecules with each other is much greater than the adhesion of the water to the surface. Water cohesion results in water having high surface tension and hence a strong tendency to form spherical droplets. Water adhesion to waxy or oily materials is small. The result is a tendency to form water beads.This phenomena, or the lack there of, is called wetting and has been studied for centuries. The cohesion of a liquid is directly related to the surface tension of a liquid. Water, which has a high surface tension, readily forms beads on materials which are hydrophobic, i.e. materials with a small adhesion to water. The waxed surface of a car has small adhesion and so water beads form regularly. The raw painted surface of the car would have more adhesion with water and so greater wettability. The opposite extreme, the tendency of a liquid to wet a surface due to strong adhesion, is critical to a situation such as lubrication where the liquid should coat the solid surface. It is the two properties combined, adhesion and cohesion, which determine wettabilty and beading.Long Answer:When one speaks of water beading on a surface, one means the formation of small droplets of water on a surface. This phenomena depends not only on the properties of water and the surface, but most importantly on the property of the interaction of the water with the surface. In science, this is the topic of "wetting" and one describes the tendency in terms of the "wettability" of a particular combination of liquid and surface. Beading is a manifestation of low wettability or little wetting.A liquid droplet on a surface tends to form a more nearly spherical shape if the forces of attraction (or cohesion) between the liquid molecules is strong and the forces between the liquid and and the solid (adhesion) are weak. We associate strong cohesive forces of a liquid with a high surface tension and a high surface tension opposes wetting. Water is an example of a liquid with high surface tension.The interaction of water with a surface like wax or plastic or Teflon is an example weak adhesion or weak forces between the liquid molecules and solid surface. Thus, wetting is highly unfavorable and formation of nearly spherical droplets is favored and we say water beads. Surfaces like metal or glass have somewhat stronger adhesive forces so wetting is greater and droplets are less spherical.
Why does water wet glass and mercury does not?
Water wets glass because the force of adhesion between the glass molecules and water molecules is greater than the force of cohesion between the water molecules and glass molecules. Mercury does not wet glass because the force of cohesion is greater than the force of adhesion
What is the difference between other planktons?
their shape and size is different
What is the difference between pyramids and high rise towers?
different shape
Different shape between pure and applied physics?
There is no difference in shape.Only difference is that there is no
What is the difference between a Flag and a Sail?
the difference is the shape
What is the relationship between length and width dimensions and the perimeter of the object?
The answer will depend upon what shape the object is. For example, if the shape was a rectangle then the perimeter = (length + width) * 2. If the shape was something different then the relationship would also be different.
How do you get the volume of a regular shape object?
The process varies between different 2D shapes.
What is the difference between a mandolin and an ukulele besides the number of strings?
The shape is different, but there is no reason a ukulele couldn't have the same shape. The ukulele is normally smaller then a mandolin. The tuning is different as well.
Why is protein hemoglobin different from protein insulin?
They are two different proteins, like the difference between a train and a robot. The difference between one protein and the other is the amino acid sequence that comprises that protein and the molecular bonding that determines its shape. Shape determines function in a protein. If it loses its shape it can't do its job. The shape of insulin and hemoglobin is different so insulin binds with glucose and hemoglobin binds with oxygen.
