collision theory Flashcards
1
Q
temperature CT
A
increasing temp causes particles to move faster with more energy.
collide more often and with greater energy
more successful collisions per sec
faster r of r
2
Q
concentration CT
A
increasing conc of reactant means more particles which may collide and react
faster reaction
3
Q
surface area CT
A
powder- sa is greater
greater area of reactant exposed and available for collision
more collisions - faster reaction
4
Q
catalysts CT
A
may react even if collide with moderate energy
more successful collisions likely
some work bc one of particles is fixed to surface
chance of collision more likely
more collisions - faster reaction
5
Q
activation energy
A
min amount of energy needed for particles to react
