Question

What are the properties of viscosity?

Answer 1

Viscosity, the resistance of a fluid to a difference in shape or motion of neighbouring portions related to one another. Viscosity indicates opposition to flow. The inverse of the viscosity is termed fluidity, a measure of the smoothness of flow. Part of a fluid required to move carries to some extent, nearby parts, the viscosity may be considered internal friction among the molecules; such friction resists the velocity differences within a fluid.

Complete step-by-step solution:
Viscosity is the property of liquids and is described as the resistance allowed by the liquid's layers. It is mainly related to fluids. Viscosity is a significant factor in deciding the forces that must be overcome when fluids are utilized in lubrication and transported in pipelines. It measures the liquid flow in such methods as spraying, injection moulding, and surface coating.
Viscosity is defined as measuring the resistance of a fluid to continuous deformation by shear stress. In other terms, viscosity defines a fluid's resistance to move. Simply put, we can state that honey is denser than water. In turn, water is less viscous than honey.
The unit of viscosity is the pascal second.
The properties of viscosity:
Viscosity is a property of measurement of the movement of particles above one another.
It depends on the force of attraction between the molecules.
Viscosity depends on the structural characteristics of the molecules.
The viscosity of the liquid can be reduced by raising the temperature.

Note: Viscosity is the estimation of the friction of fluids. The viscosity of liquids reduces rapidly with a temperature rise, and the viscosity of gases rises with an increment in temperature. Thus, upon heating, liquids move more quickly, whereas gases move more sluggishly.