Rate of Reactions Flashcards
1
Q
Define rate of reaction:
A
The change in concentration of reactants and products per unit time.
2
Q
What factors can affect the rate of reactions?
A
- nature of reactants
- surface area
- temperature
- catalyst
- concentration
3
Q
What is a catalyst?
A
A substance that increases the rate of a a chemical reaction without itself undergoing a permanent change.
4
Q
State Le Chatelier’s principle:
A
When the equilibrium of a closed system is disturbed, the system will re-onstage a new equilibrium by favouring the reaction that will oppose the disturbance.
5
Q
Acid in terms on Lowry-Brønsted theory
A
An acid is a proton donor
