Kinetics

Question 1

Rate of reaction definition?

Answer 1

The change in concentration of a reactant or a product over time

Question 2

Which factors affect the rate of reaction?

Answer 2

Temperature
Concentration
Pressure
SA of solids
Catalyst

Question 3

What is the collision theory?

Answer 3

States that for a chemical reaction to occur:
Particles must collide in the correct orientation
Particles must collide with sufficient energy (the activation energy)

Question 4

How to do continuous monitoring?

Answer 4

Gas collection
Mass lost
Colorimetry

Question 5

Gas collection?

Answer 5

Syringe to measure the volume of gas evolved

Question 6

Mass loss?

Answer 6

Set up the system as a balance so the decrease in mass of reactants can be measured

Question 7

Colorimetry?

Answer 7

Measuring the amount of light absorbed by a sample

Question 8

Specific concentration?

Answer 8

Clock reactions- (iodine- colour change from orange to dark blue)
Initial rate calculations
Precipitate formation from a clear solution
Calculating the initial rate when all concentrations are known