What will happen to the number of effective collisions as temperature or concentration increase? Why?
It can be predicted that an increase in temperature or concentration will increase the number of effective collisions.
An increase in temperature correlates directly with an increase in average kinetic energy.
The greater the average kinetic energy, the greater the force the molecules will collide with on average. This increases the chances that the collisions will cause molecules to break apart and recombine to form products.
This means that the number of effective collisions will increase.
An increase in concentration will increase the number of collisions. The more collisions, the greater the odds that the collisions will occur in at the right angle and geometric form for the collision to be effective.
This also leads to an increase in the number of effective collisions.