What is Viscosity in the context of liquids?

Viscosity refers to the resistance of a liquid to flow. It is a measure of how thick or sticky a fluid is, influencing how easily it can move. Higher viscosity indicates a greater resistance to flow, which can be observed when pouring honey compared to water; honey flows much more slowly due to its higher viscosity.

In applications such as wastewater treatment analysis, understanding viscosity is essential because it can affect the behavior of liquids during processes like mixing, aeration, and pumping. Knowing the viscosity of a liquid helps in predicting how it will behave under different conditions, assisting in designing effective treatment systems.