What is the tendency of water to move in narrow tubes called?

What is the tendency of water to move in narrow tubes called?

Capillary action is important for moving water (and all of the things that are dissolved in it) around. It is defined as the movement of water within the spaces of a porous material due to the forces of adhesion, cohesion, and surface tension.

What is the spontaneous rising of a liquid in a narrow tube?

Capillary action (or capillarity) describes the ability of a liquid to flow against gravity in a narrow space such as a thin tube. This spontaneous rising of a liquid is the outcome of two opposing forces: The capillarity of the liquid is said to be high when adhesion is greater than cohesion, and vice versa.

What is the tendency to rise to the surface of the liquid?

The tendency of a fluid to be raised or suppressed in a narrow tube, or capillary tube, is called capillary action. The curved surface of a fluid in a tube is called a meniscus. The tendency of surface tension is always to reduce the surface area.

What is the tendency of liquid to rise and fall in narrow capillary tube?

Capillarity or capillary action is the tendency of a liquid to rise or fall in a narrow tube. In both the water and the soap solution, the surface of the liquid or its meniscus curves upwards. Cohesion is the force of attraction between molecules of the same kind, e.g. the molecules of water.

What is the tendency of water to stick to other substances?

Essentially, cohesion and adhesion are the “stickiness” that water molecules have for each other and for other substances. A water drop is composed of water molecules that like to stick together-an example of the property of cohesion.

Why can water travel up a narrow tube?

Capillary action occurs when a narrow tube pulls a liquid upward against the force of gravity. When narrow tubes are placed in water, water will automatically creep upward in the tube due to adhesive forces between water molecules and the molecules that make up the tube.

Which is the strongest of the IMF’s?

hydrogen bonding
The strongest intermolecular force is hydrogen bonding, which is a particular subset of dipole-dipole interactions that occur when a hydrogen is in close proximity (bound to) a highly electronegative element (namely oxygen, nitrogen, or fluorine).

What liquids have surface tension?

There is only one liquid having higher surface tension and that’s mercury which is a liquid metal with a surface tension of almost 500 mN/m.

How can you increase the surface tension of water?

Compounds that lower water’s surface tension are called surfactants, which work by separating the water molecules from one another. Adding salt to water does increase the surface tension of water, although not by any significant amount. …

What causes capillarity of liquids in tubes of narrow bore?

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.

Why is water called a universal solvent?

Water is called the “universal solvent” because it is capable of dissolving more substances than any other liquid. Water molecules have a polar arrangement of oxygen and hydrogen atoms—one side (hydrogen) has a positive electrical charge and the other side (oxygen) had a negative charge.

What describes a hydrogen bond?

Hydrogen bonding, interaction involving a hydrogen atom located between a pair of other atoms having a high affinity for electrons; such a bond is weaker than an ionic bond or covalent bond but stronger than van der Waals forces.