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 (230 V, 50/60 Hz), 8000573 [UE1080350-230], Mechanics of Liquids and Gases](/imagelibrary/UE1080350-230/UE1080350-230_01_Experiment-Falling-sphere-viscosimeter-Basic-equipment-230-V-5060-Hz.jpg)
![Experiment: Falling sphere viscosimeter, Basic equipment (230 V, 50/60 Hz), 8000573 [UE1080350-230], Mechanics of Liquids and Gases](/thumblibrary/UE1080350-230/UE1080350-230_01_1200_1200_Experiment-Falling-sphere-viscosimeter-Basic-equipment-230-V-5060-Hz.jpg)
![Glycerine, 1007027 [U8496816], Consumables](/thumblibrary/U8496816/U8496816_01_140_140_Glycerine.jpg)
![Digital Stopwatch, 1002811 [U11902], Measurement of Time](/thumblibrary/U11902/U11902_01_140_140_Digital-Stopwatch.jpg)
![Tubing, Silicone 6 mm, 1002622 [U10146], Tubing](/thumblibrary/U10146/U10146_01_140_140_Tubing-Silicone-6-mm.jpg)
![Graduated Cylinder, 100 ml, 1002870 [U14205], Glassware](/thumblibrary/U14205/U14205_01_140_140_Graduated-Cylinder-100-ml.jpg)
![Set of 10 Beakers,600 ml, Low Form, 1002872 [U14210], Glassware](/thumblibrary/U14210/U14210_01_140_140_Set-of-10-Beakers-600-ml-Low-Form.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)
![Falling Sphere Viscometer, 1012827 [U14260], Mechanics of Liquids](/thumblibrary/U14260/U14260_01_140_140_Falling-Sphere-Viscometer.jpg)
![Immersion/Circulation Thermostat (230 V; 50/60 Hz), 1008654 [U144002-230], Gas Laws](/thumblibrary/U144002-230/U144002-230_01_140_140_ImmersionCirculation-Thermostat-230-V-5060-Hz.jpg)
![Pocket Measuring Tape, 2 m, 1002603 [U10073], Measurement of Length](/thumblibrary/U10073/U10073_01_140_140_Pocket-Measuring-Tape-2-m.jpg)
![Tripod Stand 150 mm, 1002835 [U13270], Bases](/thumblibrary/U13270/U13270_01_140_140_Tripod-Stand-150-mm.jpg)
![Stainless Steel Rod 750 mm, 1002935 [U15003], Stand Material: Clamp, Crocs and Accessory](/thumblibrary/U15003/U15003_01_140_140_Stainless-Steel-Rod-750-mm.jpg)
![DC Power Supply 20 V, 5 A (230 V, 50/60 Hz), 1003312 [U33020-230], Power Supplies](/thumblibrary/U33020-230/U33020-230_01_140_140_DC-Power-Supply-20-V-5-A-230-V-5060-Hz.jpg)
![Clamp with Hook, 1002828 [U13252], Clamps](/thumblibrary/U13252/U13252_01_140_140_Clamp-with-Hook.jpg)
![Set of 15 Safety Experiment Leads, 75 cm, 1002843 [U138021], Circuits](/thumblibrary/U138021/U138021_01_140_140_Set-of-15-Safety-Experiment-Leads-75-cm.jpg)
![Wimshurst Machine, 1002967 [U15310], Electrostatics](/thumblibrary/U15310/U15310_01_140_140_Wimshurst-Machine.jpg)
![Convex Lens on Stem f =+150 mm, 1003024 [U17103], Optical Components on Stem](/thumblibrary/U17103/U17103_01_140_140_Convex-Lens-on-Stem-f-150-mm.jpg)
![Optical Bench K, 1000 mm, 1009696 [U8475240], Kröncke Optics](/thumblibrary/U8475240/U8475240_01_140_140_Optical-Bench-K-1000-mm.jpg)
![Transformer 12 V, 25 VA (230 V, 50/60 Hz), 1000866 [U8475470-230], Power Supplies](/thumblibrary/U8475470-230/U8475470-230_01_140_140_Transformer-12-V-25-VA-230-V-5060-Hz.jpg)
![Pair of Pole Shoes D, 1000978 [U8497200], Demountable Transformer D](/thumblibrary/U8497200/U8497200_01_140_140_Pair-of-Pole-Shoes-D.jpg)
![Experiment: Lens equation (230 V, 50/60 Hz), 8000678 [UE4010100-230], Geometric Optics](/thumblibrary/UE4010100-230/UE4010100-230_01_140_140_Experiment-Lens-equation-230-V-5060-Hz.jpg)