Chemical kinetics - rates Flashcards
1
Q
which factors affect rates
A
- surface area
- temperature
- concentration
- pressure
- catalyst
2
Q
what is activation energy
A
minimum energy required in a collision for particles to react
3
Q
how to catalysts increase rate of reaction
A
lower activation energy
4
Q
what is the rate determining step
A
the rate of the slowest step which limits rate of reaction
5
Q
how to measure rate of reaction
A
- gas volume
- change in mass
- Colorimetry
6
Q
rate =
A
change in [] / change in time
7
Q
what is the rate equation:
A
rate = k[]
8
Q
what is order of reaction
A
the power to which we have to raise the concentration to fit the rate equation
9
Q
how many particles collide in rate determining step if it is first order
A
1
10
Q
how many particles collide in rate determining step if it is second order
A
2
11
Q
how many particles collide in rate determining step if it is third order
A
3
12
Q
A
