Paper 1 - Rates of Reaction Flashcards
1
Q
How does a larger surface area of a solid change the rate of reaction?
A
- Faster rate of reaction
- Produces product faster
2
Q
What is a catalyst?
A
- A substance that increased the rate of reaction
- Is chemically unchanged at the end of the reaction
- Does not get used up
3
Q
How does increasing the concentration of a solution change the rate of reaction?
A
- Faster rate of reaction
- More particles in the same volume
- More frequent successful particle collisions
4
Q
How does increasing the pressure of a gas change the rate of reaction?
A
- Faster rate of reaction
- More particles in the same volume
- More frequent successful particle collisions
5
Q
How does an increase in temperature change the rate of reaction?
A
- Faster rate of reaction
- Particles gain kinetic energy
- Particles move around more rapidly and randomly
- More frequent successful particle collisions
6
Q
How does the use of a catalyst change the rate of reaction?
A
- Faster rate of reaction
- Provides an alternative pathway and
- Reduces activation energy
