The Chemical equilibrium

LC3.5.1.1
The Chemical equilibrium
The Chemical equilibrium

Description

This model experiment on chemical equilibrium, also known as the piercing experiment, illustrates that a dynamic equilibrium occurs in an apparently quiescent chemical reaction. For this purpose, 2 measuring cylinders are used, one of which is initially filled with water and the other empty. Now water is exchanged between the two measuring cylinders with 2 glass tubes until the filling level in both no longer changes. The students see that after a few cycles an equilibrium is reached in which exactly as much water is transported there as is transported back: This means that despite the mass transfer, the overall reaction appears to be at rest.

Components of equipment sets

1 665231  8 
Angled tube 90°, 240/50 mm, 8 mm Ø LD
1 665997  4 
Graduated pipette 10 ml LD
1 30945  4 
Universal pencil LD
1 665754  4 
Measuring cylinder 100 ml, with plastic base LD
1 665754  4 
Measuring cylinder 100 ml, with plastic base LD
1 610010  8 
Laboratory safety goggles LD
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