Kinetics Flashcards
1
Q
What is activation energy?
A
The minimum amount of energy needed for a reaction to occur
2
Q
What must happen for a reaction to occur? (2)
A
- Particles must collide
- With E≥Ea
3
Q
The rate of reaction is only influenced by what? (5)
A
- Temperature
- Concentration
- Pressure
- Catalysts
- Surface Area
4
Q
Why does __________ increase rate of reaction?
- Temperature
- Concentration
A
- More particles have E≥Ea which increases frequency of successful collisions
- Increase in number of particles per unit volume which increases frequency of successful collisions
5
Q
Why does __________ increase rate of reaction?
- Pressure
- Catalyst
A
- Increase in number of particles per unit volume which increases frequency of successful collisions
- Lowers Ea so more particles have E≥Ea which increases frequency of successful collisions
6
Q
Why does surface area increase rate of reaction?
A
Increased number of reactant particles made available which increases frequency of successful collisions
7
Q
Label the Maxwell-Boltzmann distribution curve
A
8
Q
Draw Maxwell-Boltzmann distribution curve with increase in temperature
A
9
Q
If the concentration of particles increased, how would the graph change?
A
10
Q
How does a catalyst work?
A
Provides an alternative reaction pathway which lowers activation energy
