Is capillary a result of hydrogen bonding?

Last Update: April 20, 2022

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Asked by: Dr. Jaeden Hahn DDS
Score: 4.7/5 (65 votes)

Capillary action occurs when intermolecular adhesive forces between a liquid and another substance are stronger than the cohesive forces between liquid molecules. ... Water is adhesive to the glass capillary tubes due to hydrogen bonding.

How does hydrogen bonding cause capillary action?

These cohesive forces are especially strong at the surface of a liquid, resulting in the phenomenon of surface tension. For example, the hydrogen bonds between water molecules are responsible for the cohesion observed in water droplets.

What is the cause of capillary action?

Capillary action occurs because water is sticky, thanks to the forces of cohesion (water molecules like to stay close together) and adhesion (water molecules are attracted and stick to other substances). ... Dip a paper towel into a glass of water and the water will "climb" onto the paper towel.

Is adhesion due to hydrogen bonding?

Example: Surface Tension: Another name for attractive forces of molecules to each other is adhesion - in the case of water this is caused by hydrogen bonding. ... A water molecule on the surface is only pulled downward and to the sides, but not upward.

What is the relationship between hydrogen bonds and the forces of cohesion adhesion and capillary action?

What is the relationship among hydrogen bonds and the forces of cohesion, adhesion, and capillarity? Cohesion and adhesion are attractive forces between molecules. Capillary action occurs because of the combined forces of cohesion and adhesion.

Hydrogen Bonds - What Are Hydrogen Bonds - How Do Hydrogen Bonds Form

36 related questions found

What would happen if water wasn't cohesive?

Cohesiveness, adhesiveness, and surface tension: would decrease because without the +/-‐ polarity, water would not form hydrogen bonds between H20 molecules. As a result, water would not “bead” up (skcking to itself), or skck to other surfaces well, or form surfaces that can support small amounts of pressure.

What is adhesive and cohesive properties of water?

Adhesion and cohesion are important water properties that affects how water works everywhere, from plant leaves to your own body. Just remember... Cohesion: Water is attracted to water, and Adhesion: Water is attracted to other substances.

Why does hydrogen bonding cause adhesion?

Molecules of pure substances are attracted to themselves. This sticking together of like substances is called cohesion. Depending on how attracted molecules of the same substance are to one another, the substance will be more or less cohesive. Hydrogen bonds cause water to be exceptionally attracted to each other.

Why is hydrogen bonding so important to water's properties?

Why is H bonding so important to water's properties? Properties such as cohesion, adhesion, surface tension, and high specific heat would not exist without hydrogen bonding. The Hydrogen bonds are what hold the water molecules together. ... Also waters high specific heat keeps the earths temperature stabilized as well.

How does adhesion Benefit Life?

Cohesive and adhesive properties of water impact living things in many ways: ... Adhesion allows for water to move against gravity through plant cells. Capillary action owing to adhesion allows blood to move through tiny vessels in some animal bodies.

Which is an example of capillary action?

Answer: Water moving up in straw or glass tube against gravity, tears moving through tear ducts, water moving through a cloth towel against gravity. These are examples of capillary action.

What is a real life example of capillary action?

Examples of capillary action include the uptake of water in paper and plaster (two porous materials), the wicking of paint between the hairs of a paintbrush, and the movement of water through sand.

What is the formula of capillary rise?

The rise of a column of liquid within a narrow capillary tube is also because of the surface tension. The formula for capillary rise (h) = 2T/rρg.

How does gravity affect capillary action?

Gravity causes the largest drops to flatten. Capillary rise with water: When a narrow tube is brought in contact with a mostly 'wetting' liquid, some of the liquid rises inside the tube. Capillary force supports the weight of the wetting film. (iii) Capillary forces are responsible for trees growing high!

Why does the width of a tube affect capillary rise?

Capillary action occurs when the adhesive intermolecular forces between a liquid, such as water, and the solid surface of the tube are stronger than the cohesive intermolecular forces between water molecules. ... Thus, the narrower the tube, the water will rise to a greater height.

Why does water rise in capillary tube?

Capillarity is the result of surface, or interfacial, forces. The rise of water in a thin tube inserted in water is caused by forces of attraction between the molecules of water and the glass walls and among the molecules of water themselves. ... The narrower the bore of the capillary tube, the higher the water rises.

What is the importance of hydrogen bonding?

Hydrogen bonding is important in many chemical processes. Hydrogen bonding is responsible for water's unique solvent capabilities. Hydrogen bonds hold complementary strands of DNA together, and they are responsible for determining the three-dimensional structure of folded proteins including enzymes and antibodies.

What are the properties of hydrogen bonding?

The conditions for hydrogen bonding are:
  • The molecule must contain a highly electronegative atom linked to the hydrogen atom. The higher the electronegativity more is the polarization of the molecule.
  • The size of the electronegative atom should be small. The smaller the size, the greater is the electrostatic attraction.

How does hydrogen bonding affects the properties of water?

The presence of hydrogen bonds also makes water molecules more 'sticky' or in scientific terms cohesive and adhesive. The small charges on the water molecules allows them to stick together which is why water has a 'skin' that small insects can walk on, and also explains why water can be sucked up a straw so easily.

How does hydrogen bonding affect surface tension?

Hydrogen bonds provide higher surface tension to a liquid. If you disrupt hydrogen bonds, surface tension will decrease. Thats why at high temperature, surface tension is lower due to disruption of hydrogen bonds. Hydrogen bonds can be disrupted by the addition of surfactants and surface tension can be reduced also.

Is water a good solvent?

Water is capable of dissolving a variety of different substances, which is why it is such a good solvent. And, water is called the "universal solvent" because it dissolves more substances than any other liquid. ... It is water's chemical composition and physical attributes that make it such an excellent solvent.

What causes hydrogen bonding between water molecules?

Hydrogen bonds are attractions of electrostatic force caused by the difference in charge between slightly positive hydrogen ions and other, slightly negative ions. ... The attraction between individual water molecules creates a bond known as a hydrogen bond.

Which is stronger cohesive or adhesive forces?

The difference in strength between cohesive forces and adhesive forces determine the behavior of a liquid in contact with a solid surface. Water does not wet waxed surfaces because the cohesive forces within the drops are stronger than the adhesive forces between the drops and the wax.

Which is an example of cohesive forces?

Water, for example, is strongly cohesive as each molecule may make four hydrogen bonds to other water molecules in a tetrahedral configuration. ... Mercury in a glass flask is a good example of the effects of the ratio between cohesive and adhesive forces.

What is the difference between adhesive and cohesive force?

Attractive forces between molecules of the same type are called cohesive forces. Attractive forces between molecules of different types are called adhesive forces. Cohesive forces between molecules cause the surface of a liquid to contract to the smallest possible surface area.