Determination of viscosity with the falling ball viscometer according to Höppler

VC3.1.2.1
Determination of viscosity with the falling ball viscometer according to Höppler
Determination of viscosity with the falling ball viscometer according to Höppler

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Description

When a substance (gas, liquid or solid) deforms, it opposes the change in form by a resistance which is generally referred to as its viscosity. If one liquid layer moves at constant speed in a direction parallel to a second layer, then a force friction acts between the two layers. The friction converts the energy of motion into heat. For this reason, the viscosity of a substance is a measure of the internal friction. The viscosity of a substance determines how well or poorly it flows in a pipe (e.g. blood through a vein) and how much resistance it exerts against a solid body moving in it.

Viscosity is highly temperature dependant.
Experiment C3.1.2.1 studies the dependence of the viscosity on concentration in concentrated sugar solutions at room temperature.

Components of equipment sets

1 665906  4  Höppler falling ball viscometer LD
1 31327 Hand-held stop-watch, 60s/0.2s LD
1 6667681  8  Circulation thermostat SC 100-S5P LD
2 667194  4  Silicone tubing, 7 mm Ø, 1 m LD
1 OHCS-200E  4  Electronic balance, CS200E LD
1 665754  4  Measuring cylinder 100 ml, with plastic base LD
1 664138  4  Beaker, Boro3.3, 250 ml, tall LD
1 666963  4  Spoon-ended spatula, stainless steel, 120 mm LD
1 6746050  4  D(+)-Saccharose, 100 g LD
2 6753410  4  Water, pure, 5 l LD
1 33707  8  Trolley with electric drive LD
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