kinetics Flashcards
1
Q
why does the maxwell-boltzman distribution curve start at the origin?
A
no particles have zero energy
2
Q
why will a decrease in temperature decrease the rate of reaction?
(2marks)
A
less particles have energy over the activation energy so there are less frequent successful collisions
3
Q
what must happen for a reaction to occur?
A
particles must collide with sufficient energy
4
Q
explain why a small increase in temperature will have a large effect on the initial rate of reaction?
A
it significantly increases the number of molecules that have energy over the activation energy
5
Q
how does a catalyst affect the rate of reaction?
A
lowers the activation energy by providing an alternate pathway
