Changing the pressure on the reaction
1 mark · NormalWhich statement best explains why increasing the pressure of a reaction involving only liquids has little effect on the rate?
Show answer
Correct option: Liquid particles are already close together, so increasing pressure does not significantly increase the number of collisions.
Common mistakes: Choosing an answer involving evaporation or breaking molecules
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Marking points
B1 · 1 mark · Chooses the correct explanation about closely packed liquid particles.
Worked solution
A is correct. Liquid particles are already close together, so increasing pressure does not significantly increase the number of collisions.