What is viscosity: Oct 18

Oct 18, 2024 ·Viscosity isa fluid's resistance to flow, which depends on the internal friction between the molecules.Learn how to measure viscosity, the difference between dynamic and kinematic viscosity, and the factors affecting viscosity. Viscosityis a measure of a fluid's resistance to flow. It describes the internal friction of a moving fluid. A fluidwith largeviscosityresists motion because its molecular makeup gives it a lot of internal friction. A fluid with lowviscosityflows easily because its molecular makeup results in very little friction when it is in motion. Second,viscositydescribes the effort of molecules of the fluid to prevent other molecules from moving. A highviscosityfluid is a fluid whose particles have a strong tendency to impede the flow. This explains why the flow rate and theviscosityare inversely related to one another. A highviscosityfluid flows at a low rate. Viscositymeasurements are often distinguished as either kinematic or dynamicviscosity. While relativeviscositywill give a general value, instruments that can measure dynamicviscosityor absoluteviscosityhave been refined with time and proven to provide more reliable and accurate measurements.