AQA A-Level Chemistry (new spec) 1.5 Kinetics
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1. What is the collision theory? Reactions can only occur when collisions take
place between particles when they have suffi-
cient energy
2. Define activation energy The minimum energy needed for particles to
collide to start a reaction
3. What does the Maxwell Boltzmann dis- The spread of energies that molecules of a gas
tribution show? or liquid have at a particular temperature
4. Why should the energy distribution go There are no molecules with no energy
through the origin on the graph?
5. What is the Emp? Most probable energy
6. Where is the Emp line on the graph? From the peak down to the X-Axis
7. What does the area under the curve rep- The total number of particles present
resent?
8. Why should the energy distribution nev- Because there is no maximum energy for mol-
er meet the x-axis? ecules
9. What is the label for the y-axis? Number of molecules within a given energy
10. What is the label for the x-axis? Energy
11. What happens to the particles when the More particles will have energy greater than the
temperature is increased? activation energy
12. What does Ea stand for? Activation energy
13. What happens to the peak of the It moves to a higher energy with a lower height
Maxwell Boltzmann distribution when
the temperature is increased?
1/3
Study online at https://quizlet.com/_2a72dm
1. What is the collision theory? Reactions can only occur when collisions take
place between particles when they have suffi-
cient energy
2. Define activation energy The minimum energy needed for particles to
collide to start a reaction
3. What does the Maxwell Boltzmann dis- The spread of energies that molecules of a gas
tribution show? or liquid have at a particular temperature
4. Why should the energy distribution go There are no molecules with no energy
through the origin on the graph?
5. What is the Emp? Most probable energy
6. Where is the Emp line on the graph? From the peak down to the X-Axis
7. What does the area under the curve rep- The total number of particles present
resent?
8. Why should the energy distribution nev- Because there is no maximum energy for mol-
er meet the x-axis? ecules
9. What is the label for the y-axis? Number of molecules within a given energy
10. What is the label for the x-axis? Energy
11. What happens to the particles when the More particles will have energy greater than the
temperature is increased? activation energy
12. What does Ea stand for? Activation energy
13. What happens to the peak of the It moves to a higher energy with a lower height
Maxwell Boltzmann distribution when
the temperature is increased?
1/3
