Summary
Kinetics Summary Sheet
- Institution
- CCEA
Kinetics Summary Sheet
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KineticsHomogenous Catalyst: Catalyst that is in the same state as the reactants and products and
provides a lower activation energy by forming an intermediate
Heterogenous Catalyst: Catalyst in a different state to the reactants and products
Reaction Rate: Change of concentration of a reactant or product over time
Catalyst: A substance that increases the speed of a chemical reaction by providing an
alternative pathway but does not get used up
Activation Energy: Energy barrier that needs to be overcome in order for a reaction to occur
Factors affecting rate
Temperature
Increasing temp = more kinetic energy = more moving = more collisions = more successful
collisions per second = higher ROR
Pressure
Increasing pressure = particles closer together = more collisions = more successful collisions
per second = increased ROR
Concentration
Increasing conc = more reacting particles = more collisions = more successful collisions per
second = increased ROR
Catalyst
Increases ROR by providing an alternative reaction pathway
Maxwell-Boltzmann Distribution
Y axis = Number of molecules
X axis = Energy
Temperature causes line to move right
and down
Catalyst moves activation energy to the
left
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