Rate Graphs (AQA GCSE Chemistry): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What do rate graphs show during a reaction?
What do rate graphs show during a reaction?
How amounts of substances change with time
Why do rate graphs often show curves?
Why do rate graphs often show curves?
Because rate of reaction changes
Which direction does a reactant curve slope on a rate graph?
Which direction does a reactant curve slope on a rate graph?
Downwards
Which direction does a product curve slope on a rate graph?
Which direction does a product curve slope on a rate graph?
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
What happens to the steepness of the curve as the reaction continues?
What happens to the steepness of the curve as the reaction continues?
Becomes less steep
Why does the curve become less steep during the reaction?
Why does the curve become less steep during the reaction?
Fewer particles available 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
When does a rate graph plateau?
When does a rate graph plateau?
When no reactants left or equilibrium
How do you find the rate of reaction at a specific point on the graph?
How do you find the rate of reaction at a specific point on the graph?
Calculate the gradient at that point