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Summary AQA A level chemistry kinetics full revision notes
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A helpful and comprehensive set of revision notes covering the entire fifth unit of AQA A level chemistry- kinetics
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KincticsS.| CoLLIS10N THEORY
ln order to reactparticles must collde. Lo sucessful
partides must have sufficCnt enegy (energy Ea)
pactides must bc n coccect orentation
Fators affectinq rate
- lemperature
increased speed of particles and a qrcater proportuon with
so more frequent successful cllisicns b2Ea
Concentration Pressure
more purtices inaqiven volume somre
freanent suclessfu collisiuas
Suctace area to valumeato
more pacticles exposed so more freluent
sucessul colisiens
Catalyss
speed up reaction without heung used up They provid
ceaction pathways with lowl actvetian eneryy alternative
Moxwel- Boltzmann distabutioni
- No pacticles hawe zero
enr4y
most proboble energy Most partides have
ntecmed1ate eneraies
average enagy -A few have vecy hiah eAeraies
-Area under the curve is the
number of partdles
Ea
number of particles with
E Ea
Energy
Effect of temperatuce
There are more pacticles with an
E E at I, thot I.
Rate ot reactien nceascs
Energy
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