Rate: temperature (AQA GCSE Chemistry Combined Science): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the general effect of increasing temperature on reaction rate?
What is the general effect of increasing temperature on reaction rate?
Reaction rate increases
What is activation energy?
What is activation energy?
Minimum energy needed to react
According to collision theory, what must particles do to react?
According to collision theory, what must particles do to react?
Crash with enough energy
What happens to particles when temperature increases?
What happens to particles when temperature increases?
They gain more kinetic energy
Why do heated particles collide more often?
Why do heated particles collide more often?
They move faster
What happens to collision energy when temperature increases?
What happens to collision energy when temperature increases?
Collisions have higher energy
At higher temps, what proportion of collisions are successful?
At higher temps, what proportion of collisions are successful?
A higher proportion
What happens to activation energy when temperature increases?
What happens to activation energy when temperature increases?
It doesn't change
In the experiment, what do you measure at different temps?
In the experiment, what do you measure at different temps?
Hydrogen gas produced over time
Why must you keep the experiment away from naked flames?
Why must you keep the experiment away from naked flames?
Hydrogen gas is flammable