Kinetics (AQA A-Level Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does collision theory explain?
What does collision theory explain?
How reactions occur & their rates
What must happen for a chemical reaction to occur according to collision theory?
What must happen for a chemical reaction to occur according to collision theory?
Particles must collide
What two conditions must be met for a collision to be successful?
What two conditions must be met for a collision to be successful?
Sufficient energy & correct orientation
What is activation energy ()?
What is activation energy ()?
Minimum energy for successful reaction
What kinetic energy must particles have for a reaction to occur?
What kinetic energy must particles have for a reaction to occur?
Greater than or equal to
What happens when particles collide with less energy than ?
What happens when particles collide with less energy than ?
They bounce off; no reaction occurs
What proportion of particle collisions result in a reaction?
What proportion of particle collisions result in a reaction?
Only a small proportion
Why do most collisions not lead to a reaction?
Why do most collisions not lead to a reaction?
Energy too low or wrong orientation
Why must particles collide in the correct orientation?
Why must particles collide in the correct orientation?
For bonds to break & new bonds to form
What does activation energy represent?
What does activation energy represent?
Energy barrier to be overcome