Chemical Changes Flashcards
1
Q
Rate of Reaction
A
Amount of recatant/ Time Taken
2
Q
Factors affection Rate Of Reaction
A
Temperature, Concentration, Surface Area and Catalysts
3
Q
Minimum amount of energy needed to cause a reaction
A
Activation Energy
4
Q
What does a catalyst do
A
Reduces activation energy : collisions more likely to be successful - provides alternative reaction pathway
Speeds up reacction
provides surface for molecules to attach to
5
Q
Le Chateliers Principle
A
If a system at the equilibrium is subjected to a change the system will adjust to counteract the change
6
Q
Equilibrium Shifts LEFT
A
Products - decrease
Reactants - Increase
7
Q
Equilibrium shifts RIGHT
A
Products - increase
Reactants - decrease
