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Cohesive forces are the attraction between molecules of the same substance, while adhesive forces are the attraction between molecules of different substances. In materials, cohesive forces hold the molecules of the material together, while adhesive forces allow the material to stick to other surfaces.

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What is the difference between adhesive and cohesive forces in materials?

Adhesive forces are the attraction between different substances, while cohesive forces are the attraction between molecules of the same substance.


Are cohesive forces greater than adhesive forces?

It depends on the material. In some materials, cohesive forces (forces between molecules of the same substance) are stronger than adhesive forces (forces between molecules of different substances), while in others, the opposite is true. Generally, cohesive forces tend to be stronger in materials with similar molecules, such as water.


What is a force that pulls water up?

Capillary action is the force that pulls water up in narrow spaces, such as in tubes or small gaps between materials. This force is due to the combination of adhesive and cohesive forces between the water molecules and the material causing the water to move against gravity.


Why does liquid rise in a capillary tube?

Liquid rises in a capillary tube due to capillary action, which is the result of adhesive and cohesive forces between the liquid and the tube. Adhesive forces between the liquid and the tube's surface cause the liquid to be attracted to the tube, while cohesive forces within the liquid molecules help pull the liquid up the tube against gravity.


Does capillary action defy gravity?

Capillary action does not defy gravity; it is a result of intermolecular forces, specifically adhesive forces between the liquid and a solid surface, which allow liquids to move against gravity in narrow spaces like tubes or porous materials. This phenomenon occurs because the adhesive forces between the liquid molecules and the solid surface are stronger than the cohesive forces between the liquid molecules themselves.

Related Questions

What is the difference between adhesive and cohesive forces in materials?

Adhesive forces are the attraction between different substances, while cohesive forces are the attraction between molecules of the same substance.


What is the difference between water's cohesive and adhesive chemical properties and explain how each property benefits life on earth?

We are not going to do your homework !


Is the interaction between wax paper and water cohesive or adhesive?

The interaction between wax paper and water is adhesive. Adhesive forces are when two different substances stick together, whereas cohesive forces are when the same substance sticks together. In this case, the water molecules are attracted to the wax paper, causing them to adhere to each other.


Are cohesive forces greater than adhesive forces?

It depends on the material. In some materials, cohesive forces (forces between molecules of the same substance) are stronger than adhesive forces (forces between molecules of different substances), while in others, the opposite is true. Generally, cohesive forces tend to be stronger in materials with similar molecules, such as water.


What is an easy way to remember adhesive and cohesive?

Adhesive is the ability of a substance to stick to other surfaces, like glue sticking to paper. Cohesive is the ability of a substance to stick to itself, like water droplets sticking to each other. Remember "A" for adhesive (sticks to other surfaces) and "C" for cohesive (sticks to itself).


What is the best adhesive for polystyrene materials?

The best adhesive for polystyrene materials is a solvent-based adhesive specifically designed for bonding polystyrene. These adhesives create a strong and durable bond between polystyrene surfaces.


What is the difference between adhesive and solvent?

An adhesive bonds two objects together, whereas a solvent disolves something: often an adhesive.


Is soldering adhesive or cohesive?

Soldering is a cohesive process. It creates a strong bond between two metal surfaces by melting a filler material (solder) to create a joint. This joint is cohesive, meaning the solder itself binds the two surfaces together.


Why is the angle of contact of mercury obtuse?

Cohesive force between molecules of mercury is more than adhesive force between molecules of mercury and those of glass. This results in formation of a convex meniscus for surface of mercury. Actually, cohesive and adhesive forces are phenomenon due to surface tension of a liqud. The angle made by mercury from the glass surface is obtuse.


What is a force that pulls water up?

Capillary action is the force that pulls water up in narrow spaces, such as in tubes or small gaps between materials. This force is due to the combination of adhesive and cohesive forces between the water molecules and the material causing the water to move against gravity.


Why does liquid rise in a capillary tube?

Liquid rises in a capillary tube due to capillary action, which is the result of adhesive and cohesive forces between the liquid and the tube. Adhesive forces between the liquid and the tube's surface cause the liquid to be attracted to the tube, while cohesive forces within the liquid molecules help pull the liquid up the tube against gravity.


What is the difference between adhesive and mastic?

There is little difference except mastic means 'from plant origins'.