Collision Theory & Activation Energy (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What must reactant particles do for a chemical reaction to occur?
What must reactant particles do for a chemical reaction to occur?
Collide with each other
What two things must particles have for a collision to lead to a reaction?
What two things must particles have for a collision to lead to a reaction?
Enough energy and right direction
What is a successful collision?
What is a successful collision?
Particles collide with enough energy to break bonds and form new ones
What does the rate of reaction depend on?
What does the rate of reaction depend on?
How often successful collisions occur
What is activation energy?
What is activation energy?
Minimum energy needed for a reaction
What happens if particles don't have enough energy to react?
What happens if particles don't have enough energy to react?
They bounce off each other
How do reactions with low activation energy compare to those with high activation energy?
How do reactions with low activation energy compare to those with high activation energy?
They happen more quickly
Why are reactions with high activation energy slower?
Why are reactions with high activation energy slower?
Fewer particles overcome the barrier
What is the activation energy often described as?
What is the activation energy often described as?
An energy barrier
What happens to the reaction rate if more frequent successful collisions occur?
What happens to the reaction rate if more frequent successful collisions occur?
The reaction becomes faster