Effect of pressure and concentration on reaction rate

Last updated: 05/02/2020

AQA A-Level Chemistry Kinetics Effect of pressure and concentration on reaction rate

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Question 1 of 20

1. Question
What theory is involved when an increase in concentration of the reactants increases the rate of reaction?
- Collision theory
- Enthalpy theory
- Equilibrium theory
- Equilibrium constants
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Question 2 of 20

2. Question
What theory is involved when an increase in pressure increases the rate of reaction?
- Collision theory
- Enthalpy theory
- Equilibrium theory
- Equilibrium constants
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Question 3 of 20

3. Question
What happens to the rate of a reaction when the concentration of the reactants is increased?
- The rate of reaction increases
- The rate of reaction decreases
- The rate of reaction stops
- The rate of reaction will not change
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Question 4 of 20

4. Question
What happens to the rate of a reaction when the concentration of the reactants is decreased?
- The rate of reaction decreases
- The rate of reaction increases
- The rate of reaction stops
- The rate of reaction will not change
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Question 5 of 20

5. Question
When the concentration of reactants is increased for a reaction, what happens to the number of particles?
- Number of particles increases
- Number of particles decreases
- Same number of particles with a larger volume
- Same number of particles with a smaller volume
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Question 6 of 20

6. Question
When the concentration of reactants is decreased for a reaction, what happens to the number of particles?
- Number of particles decreases
- Number of particles increases
- Same number of particles with a larger volume
- Same number of particles with a smaller volume
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Question 7 of 20

7. Question
When the concentration of reactants is increased for a reaction, what happens to the particles?
- They become closer together
- They become further apart
- They lose kinetic energy
- They gain more kinetic energy
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Question 8 of 20

8. Question
When the concentration of reactants is decreased for a reaction, what happens to the particles?
- They become further apart
- They become closer together
- They lose kinetic energy
- They gain more kinetic energy
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Question 9 of 20

9. Question
What happens to the frequency of collisions of particles when concentration of the reactants within a reaction is increased?
- The frequency collisions will increase
- The frequency of collisions will decrease
- The frequency of collisions will not be affected
- The frequency of collisions will stop
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Question 10 of 20

10. Question
What happens to the frequency of collisions of particles when concentration of the reactants within a reaction is decreased?
- The frequency collisions will decrease
- The frequency of collisions will increase
- The frequency of collisions will not be affected
- The frequency of collisions will stop
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Question 11 of 20

11. Question
Which of the following is a reason why the rate of reaction increases as the concentration of reactants increases?
- Particles will become closer together
- Particles will lose kinetic energy
- Particles are spreading out
- Particles are gaining more kinetic energy
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Question 12 of 20

12. Question
Which of the following is not a reason why the rate of reaction increases as the concentration of reactants increases?
- Particles gain more chemical energy
- Particles will become closer together
- Particles experience more frequent collisions
- Particles are gaining more kinetic energy
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Question 13 of 20

13. Question
What happens to the rate of a reaction when the pressure of a reaction is increased?
- The rate of reaction increases
- The rate of reaction decreases
- The rate of reaction stops
- The rate of reaction will not change
Correct

Incorrect
Question 14 of 20

14. Question
What happens to the rate of a reaction when the pressure of a reaction is decreased?
- The rate of reaction decreases
- The rate of reaction increases
- The rate of reaction stops
- The rate of reaction will not change
Correct

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Question 15 of 20

15. Question
When the pressure of a reaction is increased, what happens to the particles?
- They become closer together
- They lose kinetic energy
- They gain more kinetic energy
- They become further apart
Correct

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Question 16 of 20

16. Question
When the concentration of reactants is decreased for a reaction, what happens to the particles?
- They become further apart
- They gain more kinetic energy
- They lose kinetic energy
- They become closer together
Correct

Incorrect
Question 17 of 20

17. Question
What happens to the frequency of collisions of particles when the pressure of a reaction is increased?
- The frequency collisions will increase
- The frequency collisions will decrease
- The frequency of collisions will not be affected
- The frequency of collisions will stop
Correct

Incorrect
Question 18 of 20

18. Question
What happens to the frequency of collisions of particles when the pressure of a reaction is decreased?
- The frequency of collisions will decrease
- The frequency of collisions will increase
- The frequency of collisions will not be affected
- The frequency of collisions will stop
Correct

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Question 19 of 20

19. Question
When the pressure of a reaction increases, what happens to the number of particles?
- Same number of particles with a smaller volume
- Number of particles increases
- Number of particles decreases
- Same number of particles with a larger volume
Correct

Incorrect
Question 20 of 20

20. Question
When the pressure of a reaction decreases, what happens to the number of particles?
- Same number of particles with a larger volume
- Same number of particles with a smaller volume
- Number of particles increases
- Number of particles decreases
Correct

Incorrect