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The strongest cohesive forces in water arise from hydrogen bonding, which occurs between the hydrogen atoms of one water molecule and the oxygen atom of another. These bonds create a significant attraction that leads to high surface tension and contributes to water's unique properties, such as its ability to form droplets and its high boiling point. The polarity of water molecules enhances these cohesive forces, making them stronger than in many other liquids.
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What is the difference between capillary action and surface tension?
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)
What is the cohesive forces between water molecules result in a tight elastic skin at the boundary between the liquid and the air?
The cohesive forces between water molecules are due to hydrogen bonding, which causes them to stick together. This allows water to form a "skin" at the surface due to surface tension, creating a barrier that supports small objects such as insects to float on water.
What cohesive and adhesive forces draw water from the roots to the different parts of the plants?
Cohesive forces between water molecules and adhesive forces between water and the walls of the xylem vessels collectively create capillary action, enabling the transport of water from the roots to the leaves of a plant. This process is known as transpiration and relies on a combination of cohesion and adhesion to maintain a continuous flow of water through the plant's vascular system.
What happened when the water finally flowed off the penny?
When the water flows off a penny, it forms into drops due to its high surface tension. This is because the cohesive forces between water molecules are stronger than the adhesive forces between water and the penny's surface, leading to the formation of water droplets.
What is it called when water climbs up the straw due to adhesion?
Capillary action is the phenomenon where water climbs up a straw due to adhesion to the straw's surface, pulling the water along with it. This occurs because the adhesive forces between water and the straw are stronger than the cohesive forces within the water molecules.
Water beads up on wax paper because its cohesive forces are greater than the adhesive forces?
Yes, water beads up on wax paper because its cohesive forces are greater than the adhesive forces.
What are the two strongest forces of nature?
Fire & Water !
Does water bead up on wax paper because its cohesive forces are greater than its adhesive forces?
Yes.
2 How can you explain Cohesion and adhesion in term of water molecules?
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.
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.
What forces are at work on water?
The primary forces at work on water include gravity, surface tension, and cohesive forces between water molecules. Gravity pulls water downward, while surface tension causes water molecules at the surface to bond tightly together, forming a barrier. Cohesive forces allow water molecules to stick to each other, contributing to properties such as capillary action and water's ability to form droplets.
Why is water rise in capillary tube wheras mercury falls in capillary tube?
This happens due to the difference in adhesive and cohesive forces. Water molecules are more attracted to the walls of the tube (adhesive forces) than to each other (cohesive forces), causing water to rise. Mercury has stronger cohesive forces compared to adhesive forces, so mercury is more attracted to itself than to the walls of the tube, causing it to be depressed or fall in the capillary tube.
What is sticky water?
Water is sticky and clumps together into drops because of its cohesive properties. On the molecular level, it is due to intermolecular forces.
What is the attractive forces between like molecules?
Cohesive force is the attractive force between like molecules. Cohesive forces are also known as intermolecular forces and can also be repulsion forces.
What is the Skin on a film of water called?
The skin on a film of water is called surface tension. It is caused by the cohesive forces between water molecules.
Why does friction act more on object moving through water than the one moving through air?
Water has high cohesive forces
Which Arab country has the strongest armed forces?
Egypt has the strongest armed forces
