The effect of changing concentration (HT only) (5.6.2.5) | AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Higher | KnowledgeSet

The effect of changing concentration (HT only)

Chemistry (Combined Science) · GCSE · AQA · AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Higher · Specification point · 5.6.2.5 · The rate and extent of chemical change · Reversible reactions and dynamic equilibrium

Predicting equilibrium shifts from concentration data

Concentration changes and equilibrium position

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5.6.2.5 The effect of changing concentration (HT only)

Content	Key opportunities for skills development
$If the concentration of one of the reactants or products is changed, the system is no longer at equilibrium and the concentrations of all the substances will change until equilibrium is reached again. If the concentration of a reactant is increased, more products will be formed until equilibrium is reached again. If the concentration of a product is decreased, more reactants will react until equilibrium is reached again. Students should be able to interpret appropriate given data to predict the effect of a change in concentration of a reactant or product on given reactions at equilibrium.$

Content

Key opportunities for skills development

If the concentration of one of the reactants or products is changed, the system is no longer at equilibrium and the concentrations of all the substances will change until equilibrium is reached again. If the concentration of a reactant is increased, more products will be formed until equilibrium is reached again. If the concentration of a product is decreased, more reactants will react until equilibrium is reached again. Students should be able to interpret appropriate given data to predict the effect of a change in concentration of a reactant or product on given reactions at equilibrium.