Chemistry 0620 · IGCSE · Rate of reaction

Rate of reaction — practice question

In an experiment, nitric acid is added to excess marble chips, and the volume of carbon dioxide produced is measured. The experiment is then repeated with smaller marble chips. Every other condition is kept unchanged. Which statement about the second experiment is correct?

  • AThe collisions are more frequent and higher energy.
  • BThe collisions are more frequent and the same energy.
  • CThe collisions are the same frequency and the same energy.
  • DThe collisions are the same frequency and higher energy.

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