1.5 Kinetics Flashcards
What must particles do in order to react
Collide with sufficient activation energy and the correct orientation
Define activation energy
The minimum energy that particles must collide with for a reaction to occur
Draw a labelled Maxwell-Boltzman curve. Label average energy, activation energy and most probable energy. Draw in a different colour the effect of increasing temperature
What is the effect of increasing temperature in rate of reaction, why?
Increases the rate of reaction
Particles have more KE, more frequent collisions, increases rate
What is the effect of increasing conc/press on rate of reaction
Increases rate
More reacting particles in a given volume, more frequent successful collisions, increase rate
What is a catalyst
A substance which increases the rate but is not used up in the reaction
How do catalysts work and how do they increase the rate of reaction
They provide an alternate reaction pathway with lower eA, more particles have enough energy so more frequent successful collisions so increase rate
