Objective: Determine the dynamic viscosity of an aqueous solution of glycerine
Dynamic viscosity, the coefficient of proportionality between velocity gradient and sheer stress in a liquid, characterises how difficult it is for an object to flow through the liquid. This can be measured using a falling sphere viscosimeter of a type designed by Höppler. It is also possible to make temperature- independent measurements in conjunction with a circulation thermostat. Measurements are made in an experiment involving an aqueous solution of glycerine. This allows the way that viscosity depends on temperature to be described by the Andrade equation.
Additionally recommended:
Supplement UE1080350S
Distilled water, 5 l
![Experiment: Falling sphere viscosimeter, Basic equipment (115 V, 50/60 Hz), 8000572 [UE1080350-115], Mechanics of Liquids and Gases](/imagelibrary/UE1080350-115/UE1080350-115_01_Experiment-Falling-sphere-viscosimeter-Basic-equipment-115-V-5060-Hz.jpg)
![Experiment: Falling sphere viscosimeter, Basic equipment (115 V, 50/60 Hz), 8000572 [UE1080350-115], Mechanics of Liquids and Gases](/thumblibrary/UE1080350-115/UE1080350-115_01_1200_1200_Experiment-Falling-sphere-viscosimeter-Basic-equipment-115-V-5060-Hz.jpg)
![Experiment: Falling sphere viscosimeter, Supplement, 8000574 [UE1080350S], Mechanics of Liquids and Gases](/thumblibrary/UE1080350S/UE1080350S_01_140_140_Experiment-Falling-sphere-viscosimeter-Supplement.jpg)