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Viscosity measurement with the falling ball viscometer

Product No: P2140400

Principle

Due to internal friction among their particles, liquids and gases have different viscosities. The viscosity, a function of the substance's structure and its temperature, can be experimentally determined, for example, by measuring the rate of fall of a ball in a tube filled with the liquid to be investigated.

Tasks

Measure the viscosity

of methanol-water mixtures of various composition at a constant temperature,
of water as a function of the temperature and
of methanol as a function of temperature.

From the temperature dependence of the viscosity, calculate the energy barriers for the displace ability of water and methanol.

What you can learn about

Liquid
Newtonian liquid
Stokes law
Fluidity
Dynamic and kinematic viscosity
Viscosity measurements

Materiallist (Excerpt)	Product	Amount
Set of Precision Balance Sartorius CPA 623S and measure software, 230 V	49224-88	1
Falling ball viscometer	18220-00	1
Immersion thermostat Alpha A, 230 V	08493-93	1
Thermometer,24..+51C,f.18220.00	18220-02	1
Bath for thermostat, Makrolon	08487-02	1
External circulation set for thermostat Alpha A	08493-02	1
Retort stand, h 750 mm	37694-00	1
Pyknometer, calibrated, 25ml	03023-00	1
Stopwatch, digital, 1/100 s	03071-01	1
Water, distilled 5 l	31246-81	1
Universal clamp with joint	37716-00	1
Methanol 500 ml	30142-50	2
Pasteur pipettes, 250 pcs	36590-00	1
Volumetric flask 100 ml, IGJ12/21	36548-00	9
Right angle clamp	37697-00	1
Rubber caps, 10 pcs	39275-03	1
Glass beaker DURAN®,tall, 150 ml	36003-00	11
Glass beaker DURAN®, short , 250 ml	36013-00	1
Hose clamp for 5-12 mm diameter	40997-00	10
Rubber tubing, i.d. 10 mm	39290-00	1
Wash bottle, plastic, 500 ml	33931-00	2
Rubber tubing, i.d. 6 mm	39282-00	6
Tubing connector, ID 6-10mm	47516-01	2
Laboratory Experiments Physics, Chemistry, Biology andApplied Sciences, CD-ROM, incl. operating manuals	16502-42	1