Flashcards in Factors Affecting Rate of Reaction Deck (13):
1
What are the 4 things rate of reaction depends on
Temperature
Concentration/pressure
Surface area
Presence of a catalyst
2
What overall increases rate of reaction
More collisions
3
What happens to particles if temperatures increased
Particles move faster and collide more
4
How does increasing concentration increase rate
As there's more particles colliding
5
How does increasing surface area increase rate of reaction
If one of reactants is sold, breaking it up into smaller pieces with increase rate of reaction (more area to work on)
6
How does using a catalyst increase rate of reaction
As they decrease activation energy needed to occur
7
What's activation energy
Minimum amount of energy needed to start a reaction
8
What's a catalysts
Substance that speeds up a reaction without being used up itself
9
An advantage of catalysts
Can speed things up/slow things down
10
Disadvantage of catalysts
Can be expensive
11
What are biological catalysts called
Enzymes
12
Give a use of an enzyme
To washing powders to digest stains
13