C8 - Rates Of Reaction Flashcards
1
Q
What is activation energy?
A
The minimum energy required for a reaction to take place
2
Q
What is a catalyst?
A
A substance that speeds up a chemical reaction by providing an alternative, lower energetic pathway for the reaction to take place. The catalyst is unchanged at the end of the reaction.
3
Q
What is a closed system?
A
A system in which no matter enters or leaves
4
Q
What is collision theory?
A
An explanation of chemical reactions in terms of reacting particles colliding with sufficient energy for a reaction to take place
