Chemical reactions Flashcards
1
Q
Whats happens in a exothermic reaction?
A
Energy lost to surroundings(given out)
2
Q
What happens in an endothermic reaction?
A
Energy is taken in
3
Q
What are the 4 factors that affect the rate of a reaction?
A
- Temperature
- Concentration
- Catalyst
- Surface area
4
Q
What do catalysts do?
A
Speed up the rate of a a reaction
5
Q
What are catalytic converters used in?
A
Vehicle exhausts
6
Q
What do higher temperatures do?
A
Increase collisions
7
Q
What does a higher concentration/pressure do?
A
Increase collisions
8
Q
What does a larger surface area do?
A
Increase collisions
9
Q
What does adding a catalyst do?
A
Increase the number of SUCCESSFUL collisions
