Kinetics

Question 1

Collision theory

Answer 1

For reactions to occur particles must collide
Particles must have enough energy to “overcome energy barrier” to be able to react
Minimum energy to overcome the barrier is activation energy

Question 2

Increasing concentration

Answer 2

Increases number of reacting particles in given volume
Increases frequency of collisions
More successful collisions in a given time

Question 3

Increasing pressure

Answer 3

More particles in a given volume Increases
More successful collisions in a given time

Question 4

Increasing surface area

Answer 4

Increases number of reactant particles available for collision
Increases frequency of collisions
More successful collisions in a given time

Question 5

Increasing temperature

Answer 5

Particles have more Kinetic energy
More particles have energy greater than activation energy
More successful collisions in a given time

Has the greatest effect on rate of reaction

Question 6

Effect of catalyst on rate of reaction

Answer 6

Increases rate of reaction
Provides alternative reaction pathway with lower activation energy

Question 7

Maxwell Boltzmann

Answer 7