Chemistry 9701 · AS & A Level · 2.1

2.1 — practice question

When the temperature of a mixture of gases rises, the reaction happens more quickly. Which row gives the correct explanation?

  • Aactivation energy remains unchanged: false; more particles have energy equal to or above the activation energy: false; increase in the rate of successful collisions: false
  • Bactivation energy remains unchanged: true; more particles have energy equal to or above the activation energy: true; increase in the rate of successful collisions: true
  • Cactivation energy remains unchanged: false; more particles have energy equal to or above the activation energy: true; increase in the rate of successful collisions: true
  • Dactivation energy remains unchanged: true; more particles have energy equal to or above the activation energy: false; increase in the rate of successful collisions: false

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