Rate of Reaction (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does collision theory help us understand?
What does collision theory help us understand?
Why reaction speed changes with conditions
Which factors affect reaction rate according to collision theory?
Which factors affect reaction rate according to collision theory?
Concentration, temperature, surface area, catalyst
What happens to most particles when they collide?
What happens to most particles when they collide?
They bounce off without reacting
What is the first essential condition for a chemical reaction?
What is the first essential condition for a chemical reaction?
The reactant particles must collide
What is activation energy?
What is activation energy?
The minimum energy needed for reaction
What must particles have enough of to react when they collide?
What must particles have enough of to react when they collide?
Energy (at least activation energy)
What is one way to increase the rate of reaction?
What is one way to increase the rate of reaction?
Increase frequency of collisions
How can particle energy help increase reaction rate?
How can particle energy help increase reaction rate?
More energy means more successful collisions
What happens to particle number when concentration is doubled?
What happens to particle number when concentration is doubled?
The number of particles doubles
What happens to collision frequency when concentration is doubled?
What happens to collision frequency when concentration is doubled?
Collision frequency doubles
What happens to reaction rate when concentration is doubled?
What happens to reaction rate when concentration is doubled?
The rate of reaction doubles
Why does higher concentration increase reaction rate?
Why does higher concentration increase reaction rate?
More particles, so more frequent collisions