The effect of pressure change on chemical equilibrium

The effect of pressure change on chemical equilibrium

Examination of dissolved carbon dioxide in a bottle of carbonated water.

01:07

Chemistry

Keywords

balance, chemical equilibrum, change of pressure, carbon dioxide, water, carbonic acid, gas formation, equilibrium process, pressure, gas, volume, gas laws, molecule, bubble, carbonated water, experiment, chemical, chemistry, physics

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A bottle of carbonated water, Hold the bottle firmly and open the cap slightly to release carbon dioxide from the bottle, then turn it back and close it., Shake the bottle gently, then repeat the previous steps a few times., Observe the fizzing in the bottle., The decrease in the number of carbon dioxide molecules in the gas leads to bubble formation, and as the pressure falls the solubility of carbon dioxide decreases. As a result, the equilibrium shifts, favouring the decomposition of carbonic acid and the formation of carbon dioxide.
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