Kinetics Flashcards
1
Q
Define a chemical reaction rate
A
Change in amount of product per unit of time
2
Q
Are reaction rates conventionally positive or negative?
A
Positive
3
Q
Average rate
A
Change in concentration over time
4
Q
Instantaneous rate
A
Change in concentration / time
5
Q
Initial rate
A
Rate at time 0
6
Q
What happens to the rate of a reaction as the reaction proceeds?
A
It slows down
7
Q
Instantaneous rate falls until
A
It reaches 0
8
Q
Which factors affect reaction rates
A
Chemical nature Physical state Temperature Concentration Catalyst
9
Q
What do rate las describe
A
The relationship between the rate of reaction and the concentration of the reactants
10
Q
Rate constant
A
Constant specific for a reaction at a temperature
11
Q
What is an integrated rate law for
A
Finding concentration of a substance after a time
