Rate of reaction on a graph (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 does a rate of reaction graph show?
What does a rate of reaction graph show?
How fast a chemical reaction happens
What does the gradient of a rate of reaction graph indicate?
What does the gradient of a rate of reaction graph indicate?
The rate of reaction
What does a steeper line on a rate of reaction graph mean?
What does a steeper line on a rate of reaction graph mean?
A faster reaction
In the marble chips experiment, which gas is collected?
In the marble chips experiment, which gas is collected?
Carbon dioxide
What should be plotted on the x-axis of a rate of reaction graph?
What should be plotted on the x-axis of a rate of reaction graph?
Time (minutes)
How should you connect points on a rate of reaction graph?
How should you connect points on a rate of reaction graph?
Draw a smooth best-fit line
What should you do with anomalous points when drawing a best-fit line?
What should you do with anomalous points when drawing a best-fit line?
Ignore them
What is the gradient of the line like at the start of a reaction?
What is the gradient of the line like at the start of a reaction?
Very steep
What does a flat (horizontal) line on a rate of reaction graph indicate?
What does a flat (horizontal) line on a rate of reaction graph indicate?
The reaction has finished
Why does the rate of reaction slow down during a reaction?
Why does the rate of reaction slow down during a reaction?
Fewer reactant particles available
How do you calculate the rate of reaction from a graph?
How do you calculate the rate of reaction from a graph?
Draw a tangent & calculate gradient
If a tangent has a gradient of 80 cm³/min at 1 min and 40 cm³/min at 3 min, what can you conclude?
If a tangent has a gradient of 80 cm³/min at 1 min and 40 cm³/min at 3 min, what can you conclude?
Reaction is twice as fast at 1 min