Collision Theory

Question 1

What do more collisions do?

Answer 1

More collisions increases the rate of reaction.

Question 2

What three things increase the amount of collisions?

Answer 2

1) temperature
2) concentration
3) surface area

Question 3

How does temperature increase collisions?

Answer 3

The particles are moving faster as they have more energy so they are more likely to collide with each other.

Question 4

How does concentration increase collisions?

Answer 4

There are more particles of the reactant, so they are at a higher frequency, so they are more likely to collide.

Question 5

How does surface area increase collisions?

Answer 5

More particles will be exposed to the solution (if the reactant is a solid) so there will be more collisions between the two reactants’ particles.