Reaction Rates and Equilibria Flashcards
1
Q
What is <i>Rate of Reaction</i>
A
<u>Change in concentration</u>
Time
2
Q
How does <i>Concentration</i> affect the rate of a chemical reaction.
A
There are more molecules per unit volume so are more likely to collide successfully.
3
Q
How does <i>Temperature</i> affect the rate of a chemical reaction.
A
Molecules have more kinetic energy so there are more frequent collisions and more effective collisions as they have sufficient energy.
4
Q
How does <i>Catalyst</i> affect the rate of a chemical reaction.
A
Lowers the activation energy so more molecules have sufficient energy to have an effective collision and react.
5
Q
How does <i>Surface area</i> affect the rate of a chemical reaction.
A
It has a larger surface for collisions so there are more effective collisions.
