4.5 kinetics II

Question 1

rate of reaction

Answer 1

change in conc of either the reactants or products per unit time

Question 2

experiments techniques for studying rate of reactions

Answer 2

1. measuring volume of gas ( over water or to a syringe )
2. monitoring colour change
3. monitoring changes in electrical conductivity
4. clock reactions
5. loss in mass involving formation of gaseous products ( related to the first point )

Question 3

experiments techniques for studying rate of reactions

2. monitoring colour change

using….
what is recorded ….

Answer 3

use colorimeter
it measures the amount of light which is absorbed as it passes through a solution, recorded as the absorbance of the solution

Question 4

experiments techniques for studying rate of reactions

3. monitoring changes in electrical conductivity

Answer 4

because ions are produced