Determination of Viscosity with the Falling Ball viscometer According to Höppler

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

1	665 906	Höppler falling ball viscometer
1	313 07	Hand-held stop watch I, mechanical
1	666 7681	Circulation thermostat SC 100-S5P
2	667 194	Silicone tubing, 7 mm diam., 1 m
1	OHCS-200E	Electronic balance, CS200E
1	665 754	Measuring cylinder, 100 ml, with plastic base
1	664 138	Beaker, Boro3.3, 250 ml, tall
1	666 963	Spoon-ended spatula, stainless steel, 120 mm
1	674 6050	D(+)-Saccharose, 100 g
2	675 3410	Water, pure, 5 l