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Chemistry · Paper 2 · Foundation + Higher

Concentration and gas pressure

Key ideas1 of 3

More concentrated solution

A more concentrated solution contains more dissolved reactant particles per unit volume. At the same temperature, they collide with the other reactant more often.

Equal solution volumes A and B contain 8 and 20 dissolved reactant particles respectively.

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Foundation + Higher. C6 · Rate and extent of chemical change.

AQA Combined Science Trilogy 8464 · 5.6.1.2–5.6.1.3. Original teaching notes, questions and diagrams. Animations are simplified models; speeds and practical readings are illustrative.