In the field of polymers, there are other viscosity values such as specific viscosity, intrinsic viscosity, and relative viscosity, which make it possible to calculate the average viscous molar mass of these polymers in solutionĢ. s (1 mPa.s = 20☌ water viscosity) or Poise or cPoise. It can consider the rheological behavior of the product, which gives it an absolute character.
It is expressed in Stokes, cStokes or cm2/s. The unit for density is g/mL.Kinematic viscosity n (nu), resulting from a flow time measurement, takes account of gravity and concerns rather less viscous fluids and simple rheological behavior: Newtonian fluids. The density of both the sphere and the liquid are needed to perform the viscosity calculation. Some common liquids you could try including water, honey, corn syrup, cooking oil, and milk.Ĭalculate the density of your chosen sphere. Try testing many different liquids with different flow rates to see how their viscosities differ.
The liquid must be clear enough to see the marble as it’s dropped through the liquid.You can use a watch instead of a stopwatch, but your measurements will be more accurate with a stopwatch.A graduated cylinder is a plastic container that has graded markings on the side that allow you to measure volume.Make sure its diameter is no greater than half the diameter of the graduate cylinder so it can easily be dropped into the cylinder. The sphere can be a small marble or steel ball.X Research source This experiment has many steps, but when followed correctly, they will allow you to calculate the viscosity of any liquid. To calculate viscosity of a liquid, you will need a sphere, a graduated cylinder, a ruler, a stopwatch, the liquid in question, a scale, and a calculator. Gather the necessary materials for the experiment.
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