IB CHEM: KINETICS VOCAB Flashcards
1
Q
Collision Theory
A
- Two particles must collide
- The collecting particles must have the correct orientations
- The particles must have sufficient knetic energy to initiate the reaction
2
Q
Activation Energy
A
The minimum energy that colliding particles need for a reaction to occur
3
Q
Factors affecting collision Rate
A
- Concentration/pressure
- Surface area
4
Q
Factors affecting the required activation energy
A
- Temperature
- Catalysts
5
Q
Pressure increases
A
- Volume decreases
- Then look for side with less mols
6
Q
Volume increases
A
- Pressure decreases
- Then look for side with less mols
NO AATT
7
Q
Concentration/ Pressure
A
- Increasing the concentration increases the amount of particles, therefore increasing reaction rate
8
Q
Surface Area
A
- Increasing the surface area, increases the area for particles to make contact. Therefore increasing the reaction rate
9
Q
Temperature
A
- Increasing temp. increases the speed at whoch the particles move, therefore increasing the frquency of effective collisions
- Increases the # of particles with sufficient activation energy
10
Q
Method for Pressure
A
Increasing: Shift to side with less mols
Decreasing: Shift to side with More
(Inverse of volume) As P+, V- and vice verse
11
Q
Method for Volume
A
Increasing: Shift to side with more mols
Decreasing: Shift to side with less mols
(Inverse of Pressure) As V+, P- and vice verse
12
Q
Endothermic
A
- Low to High graph
- Positive temp
- Goes on Left
- Then AATT
13
Q
Exothermic
A
- High to low graph
- Negative temp
- Goes on Right
- Then AATT
14
Q
If Q=Kc
A
Reaction is at equilibrium
15
Q
If Q<Kc
A
- Q -> K is increase
- Reaction will proceed to the right
