Capillary action is the phenomenon in which liquids rise up into a narrow tube called a capillary. It results when cohesive forces, the intermolecular forces in the liquid, are weaker than adhesive forces, the attraction between a liquid and the surface of the capillary..
Regarding this, what is the relationship between the strength of intermolecular forces and capillarity?
Capillarity is related to surface tension. If the attractive force between the glass walls of the tube and the substance are stronger than the intermolecular forces in the substance, than the edges of the liquid will be pulled above the surface of the liquid.
Additionally, what is the relationship between viscosity and intermolecular forces? Resistance of a liquid to flow is called viscosity. It is related to the ease with which molecules can move past each other. Viscosity increases with stronger intermolecular forces caused by increase in the molecular weight, and decreases with higher temperature.
Beside this, does capillary action increase with intermolecular forces?
Decreased surface tension also increases capillary action. This is because decreased surface tension means that the intermolecular forces are decreased, thus decreasing cohesive forces. As a result, capillary action will be even greater.
What is the attractive force between like molecules involved in capillary action?
When attractive forces occur between like molecules, they are referred to as cohesive forces, or resulting in cohesion, because they hold the molecules of sample close together. These cohesive forces are especially strong at the surface of a liquid, resulting in the phenomenon of surface tension.
Related Question Answers
Why is water so highly cohesive?
Water is highly cohesive—it is the highest of the non-metallic liquids. More precisely, the positive and negative charges of the hydrogen and oxygen atoms that make up water molecules makes them attracted to each other.What are the factors that affect surface tension?
Factors affecting surface tension Impurities present in a liquid appreciably affect surface tension. A highly soluble substance like salt increases the surface tension whereas sparingly soluble substances like soap decreases the surface tension. The surface tension decreases with rise in temperature.What is the strongest intermolecular force?
hydrogen bonding
What is the effect of intermolecular forces on the properties of liquids?
The greater the inter-molecular forces the higher the boiling point and the higher the freezing point. The lower the inter-molecular forces the lower the boiling point and the lower the freezing point. It also effects the fluidity of the liquid, the greater these forces the slower the liquid flows.What is the concept of surface tension?
Definition of surface tension. : the attractive force exerted upon the surface molecules of a liquid by the molecules beneath that tends to draw the surface molecules into the bulk of the liquid and makes the liquid assume the shape having the least surface area.What is an example of capillary action?
Capillary action is the movement of a liquid through or along another material against an opposing force, such as gravity. Examples of capillary action in water include water moving up a straw or glass tube, moving through a paper or cloth towel, moving through a plant, and tears moving through tear ducts.How does gravity affect capillary action?
Capillary action occurs when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules. The height to which capillary action will take water in a uniform circular tube (picture to right) is limited by surface tension and, of course, gravity.Does surface tension increase with temperature?
In general, surface tension decreases when temperature increases because cohesive forces decrease with an increase of molecular thermal activity. The influence of the surrounding environment is due to the adhesive action liquid molecules have at the interface.Do all liquids rise in a capillary tube?
or the pressure of the liquid is greater than the pressure in the capillary, then those liquids will rise in a capillary glass tube. Therefore, no. Not all liquids will rise in all capillary glass tubes in all situations.Is water polar or nonpolar?
Water (H2O) is polar because of the bent shape of the molecule. The shape means most of the negative charge from the oxygen on side of the molecule and the positive charge of the hydrogen atoms is on the other side of the molecule. This is an example of polar covalent chemical bonding.What is the formula for capillary rise?
A capillary tube of radius 0.5 mm is dipped vertically in a liquid of surface tension 0.04 N/m and density 0.8 g/cc. Calculate the height of capillary rise, if the angle of contact is 10°. To Find: Height of capillary rise = h =?How does water rise in a 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 capillary flow?
Capillary action (sometimes capillarity, capillary motion, capillary effect, or wicking) is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity. It occurs because of intermolecular forces between the liquid and surrounding solid surfaces.Is high vapor pressure a strong intermolecular force?
Vapor pressure is a property of a liquid based on the strength of its intermolecular forces. A liquid with weak intermolecular forces evaporates more easily and has a high vapor pressure. A liquid with stronger intermolecular forces does not evaporate easily and thus has a lower vapor pressure.How is capillary action measured?
The ability of paper towels to absorb liquids is an example of capillary action. One very accurate method of measuring surface tension is through capillary action, since the height water rises in a thin tube is related to the surface tension of the climbing liquid.How does a capillary tube work?
Capillary tube is basically a expansion device looks similar to this . Expansion is required so that the refrigerant temperature while entering into evaporator coil is less/low temp so that heat flows from your room to the refrigerant in the coil and it boils.Which substance has the highest surface tension?
water
What factors affect viscosity?
Viscosity is resistance to flow. For liquids, typically the larger the intermolecular forces (IMF) the higher the viscosity. The other factors that affect viscosity are temperature and the shape of the molecule.What increases viscosity?
Viscosity generally increases as the temperature decreases. The viscosity of a liquid is related to the ease with which the molecules can move with respect to one another. Thus the viscosity of a liquid depends on the: strength of attractive forces between molecules, which depend on their composition, size, and shape. 
