Kinetics Flashcards
What must particles do in order to react
Collide with sufficient energy and the correct orientation
Do most collisions result in a reaction
No
Define activation energy
The minimum energy that particles must collide with for a reaction to occur
What is the effect of increasing temperature on rate of reaction
Increased rate of reaction
Much higher proportion of particles have energy greater than the activation energy
What is the effect of increasing concentration/ pressure on rate of reaction
Increased rate of reaction
More particles in a given volume so more frequent collisions so increased rate
What is a catalyst
A substance which increases the rate of reaction but is not used up in the reaction
How do catalyst work
Provide an alternative reaction pathway
Lowers activation energy so more particles have energy > activation energy
Increased reaction rate
