Cohesion : The force of attraction between the molecules of a liquid by virtue of which they are bound to each other to remain as one assemblage of particles is known as the force of cohesion. This property enables the liquid to resist tensile stress.

Properties of Fluids

Fluids are substances that can flow and have no fixed shape. They can take the shape of the container they are kept in. The properties of fluids are important in understanding how they behave under different conditions. There are different properties of fluids that we need to understand.

Cohesion

Cohesion is the property of a fluid by which its own molecules are attracted. It is the force of attraction between the molecules of the same fluid. Cohesion is responsible for the surface tension of a liquid. The surface tension is the tendency of a liquid surface to minimize its surface area. It is caused by the cohesive forces between the molecules of the liquid.

Cohesive forces are always attractive, and they are caused by the intermolecular forces between the molecules. The strength of the cohesive forces depends on the type of molecules, their size, and their shape. The cohesive forces are responsible for the viscosity of a fluid.

Viscosity

Viscosity is the property of a fluid by which it resists flow. It is the measure of the internal friction of a fluid. The viscosity of a fluid depends on the type of molecules, their size, and their shape. The viscosity of a fluid decreases with an increase in temperature.

Fluids with a high viscosity are thick and flow slowly, while fluids with a low viscosity are thin and flow easily. The viscosity of a fluid is important in understanding its behavior in different applications, such as in lubrication or hydraulic systems.

Adhesion

Adhesion is the property of a fluid by which it is attracted to another surface. It is the force of attraction between the molecules of the fluid and the molecules of the surface. Adhesion is responsible for the wetting of a surface by a liquid.

The adhesion of a fluid to a surface depends on the type of molecules, their size, and their shape. The strength of the adhesion forces depends on the type of molecules of the surface as well. The adhesion of a fluid to a surface is important in understanding its behavior in different applications, such as in painting or coating.

Compressibility

Compressibility is the property of a fluid by which it can be compressed under pressure. It is the measure of the change in volume of a fluid when it is subjected to pressure. Compressibility is important in understanding the behavior of gases under pressure.

Gases are highly compressible, while liquids are only slightly compressible. The compressibility of a fluid depends on the type of molecules, their size, and their shape.

Surface Tension

Surface tension is the property of a fluid by which it exhibits a force on its surface that tends to minimize its surface area. Surface tension is caused by the cohesive forces between the molecules of the fluid.

Surface tension is responsible for the formation of drops and bubbles in a liquid. The surface tension of a liquid depends on the type of molecules, their size, and their shape.

Conclusion

In conclusion, the property of a fluid by which its own molecules are attracted is called cohesion. Cohesion is responsible for the surface tension and viscosity of a fluid. The other properties of fluids are adhesion, compressibility, and surface tension. Understanding the properties of fluids is important in various applications, such as in hydraulic systems or coating.

Cohesion