Rate of Reaction (AQA GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What do rate graphs show in a chemical reaction?
What do rate graphs show in a chemical reaction?
How amounts change over time
Why do rate graphs often show curves?
Why do rate graphs often show curves?
The rate of reaction changes
What happens to a reactant curve on a rate graph over time?
What happens to a reactant curve on a rate graph over time?
It slopes downwards
What happens to a product curve on a rate graph over time?
What happens to a product curve on a rate graph over time?
It slopes upwards
When is the curve steepest on a rate graph?
When is the curve steepest on a rate graph?
At the beginning of the reaction
Why is the reaction fastest at the beginning?
Why is the reaction fastest at the beginning?
Plenty of reactant particles to collide
Why does the curve become less steep as the reaction continues?
Why does the curve become less steep as the reaction continues?
Fewer particles to collide
What does it mean when the curve flattens out (plateaus)?
What does it mean when the curve flattens out (plateaus)?
Reaction has stopped
How do you find the rate of reaction at a specific point on a graph?
How do you find the rate of reaction at a specific point on a graph?
Calculate the gradient at that point