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.
Hydrogen bonds are the reason for cohesion and Van Der Waals equation is the cause of adhesion.
Forces of attraction between water molecules
These phenomenons are explained by the ability of water to form four hydrogen bonds with other water molecules.
Having high surface tension
Hydrogen bonds cause adhesion.
Cohesive
This is a cohesive interaction.
cohesion
no
Surface tension does.
Yes, water beads up on wax paper because its cohesive forces are greater than the adhesive forces.
Water has both cohesive and adhesive forces. They are similar.The cohesive of water describes how the molecules of water are attracted to one another. We observe the cohesive forces of water when we see a drop of water sitting on a surface. The water does not spread because the molecules are attracted to one another. Surface tension of water is due to its cohesive properties.The cohesive forces of water are due to hydrogen bonding between molecules.Adhesive properties of water are how the molecules are attracted to other substances. We observe the adhesive forces of water when we see the edge of water in a glass is attracted up on the sides of the glass. This is most apparent when the diameter of the glass vessel is less than a centimetre. It is called a meniscus. Trees use this adhesive property of water to help suck water up from the ground. If the diameter of the glass is small enough, as in a glass capillary, the water will rise up the tube by itself due to adhesive forces.
Yes.
Water has stronger adhesive forces than adhesive forses. Mercury on the other hand has stronger cohesive forces than adhesive. cohesive forces hold molecules of the same substance together , vice-versa for adhesive forces
Water is sticky and clumps together into drops because of its cohesive properties. On the molecular level, it is due to intermolecular forces.
Cohesive
A drop of water appears like a pearl due to the cohesive forces among its molecules. Forces of attraction between water molecules and other molecules called adhesive forces.
Water has high cohesive forces
Each water molecule pulls on other water molecules as water is transpired from the leaves of the plant. This allows free movement of water throughout the plant.
The meniscus is created by adhesive forces between the glass and the water. THis means that the water water molecules are attracted to the glass so they can creep up the glass to a small degree. The water molecules are also attracted to each other through hydrogen bonding. These are called cohesive forces and they allows the water that creeps up the glass to bring other water molecules with them. The cohesive forces and adhesive forces can only resist gravity to a certain degree so in the middle the liquid curves downward.
surface tension is a product of cohesive forces (eg. water to water forces in a bubble) whereas capillary actionis a product of adhesive forces (eg. water climbing up a thin glass tube)
Cohesive forces in given case are greater than adhesive forces. So water molecules form spherical shape. This behavior is more prominent in mercury.