Chemistry path · GCSE Chemistry

Does a shorter reaction time mean a slower rate?

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Practice question

Two trials use the same mass of a powdered solid, the same volume of acid and the same temperature. Timing stops when 40 cm³ of gas has been collected. With 0.50 mol/dm³ acid, this takes 42 s. With 1.00 mol/dm³ acid, it takes 21 s. State the effect of increasing concentration on the reaction rate, using the data.

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Official curriculum

4.6.1.2 Factors which affect the rates of chemical reactions

This challenge practises knowledge and exam skills from the official GCSE science curriculum. Use these sources to see the exact subject content and its wider Key Stage 4 context.

AQA specification 4.6.1.2 Factors which affect the rates of chemical reactions GOV.UK Key Stage 4 science programme

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