Rates Flashcards
1
Q
What is collision theory?
3 points
A
- To react particles must collide
- Successful collision - particles react
- Unsuccessful- particles bounce off each other
2
Q
Different ways to effect rate
A
Surface area, concentration, pressure, catalysts, temperature
3
Q
How do you work out rate.
A
1/time
4
Q
What variables are proportional to rate?
A
Concentration, pressure
5
Q
What variables are not proportional to rate?
A
Temperature, surface area
6
Q
What is a catalysts?
A
Catalysts provide a different pathway for a reaction with a lower Ea
7
Q
What is a reason for unsuccessful collision?
A
Main reason is the collision didn’t have enough energy (
8
Q
What happens when you increase temperature
A
Particles have more energy, higher proportion have enough energy to react, higher frequency of successful collisions, a faster rate
9
Q
Rates symbol equation including hydrogen peroxide
A
2H2O —> 2H2O + O2
