Influence of a change in temperature on the chemical equilibrium

LC3.5.2.1
Influence of a change in temperature on the chemical equilibrium
Influence of a change in temperature on the chemical equilibrium

Description

The chemical equilibrium can be influenced by several factors according to Le Chatelier's principle. In this experiment the students make a blue and a green copper complex. Both complexes can be transformed into each other by heating and cooling in an equilibrium reaction. In this way, the students experience the temperature dependence of chemical equilibria in this experiment.

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Teclu burner, propane LD
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Copper(II) sulfate solution, 1 mol/l (15 %), 500 ml LD
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Hydrochloric acid, conc., 25 %, 250 ml LD
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Water, pure, 5 l LD
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