How Fast? Flashcards
1
Q
what is the rate equation
A
rate = k[A]^a [B]^b
2
Q
units for rate
A
mol dm-3 s-1
3
Q
rate against conc graphs
A
.horizontal straight line = zero order
.directly proportional line starting at zero = first order
.curved upwards line = second order
4
Q
conc against time graph
A
.zero order = left to right downwards straight
.first order = left to right downwards slightly curved
.second order = left to right downwards big curve
5
Q
for first overall order reaction
A
k = ln2/halflife
k = rate constant
6
Q
what is the rate determining step
A
slowest step
.rate equation shows whats in the slowest step
