Unit 1 Energy Matters
(a) Reaction Rates
1.
Following a reaction using changes in concentration, mass or volume.
2.
Average Rate of reaction.
3.
Relative rate 1/t.
4.
PPA 1
5.
Factors affecting reaction rate : concentration, particles size and temperature.
6.
Collision theory.
7.
PPA 2
8.
Kinetic energy diagrams.
9.
Activation energy.
10. Homogeneous and heterogeneous catalysts.
11. Industrial uses of catalysts.
12. Catalytic converters in cars.
13. Enzymes and their uses.
NAME:-
CLASS:-
TEACHER:-
© Complete Chemistry 1988
Unit 1 Energy Matters
(a) Reaction Rates
Learning Outcomes
1.
Reactions can be followed by measuring changes in concentration, mass and
volume of reactants and products.
2.
The average rate of a reaction, or stage in a reaction, can be calculated
from initial and final quantities and the time interval.
3.
The rate of a reaction, or stage in a reaction, is proportional to the
reciprocal of the time taken.
4.
The rates of reactions are affected by changes in concentration, particle size
and temperature.
5.
The collision theory can be used to explain the effects of concentration and
surface area on reaction rates.
6.
Temperature is a measure of the average kinetic energy of the particles of a
substance.
7.
The activation energy is the minimum kinetic energy required by colliding
particles before reaction will occur.
8.
Energy distribution diagrams can be used to explain the effect of changing
temperature on the kinetic energy of particles.
9.
The effect of temperature on reaction rate can be explained in terms of an
increase in the number of particles with energy greater than the activation
energy.
Revised for
NAB
Prelim
Exam
10. With some chemical reactions, light can be used to increase the number of
particles with energy greater than the activation energy.
11. Catalysts can be classified as either heterogeneous or homogeneous.
12. Catalysts are used in many industrial processes.
13. Heterogeneous catalysts work by the adsorption of reactant molecules.
14. The surface activity of a catalyst can be reduced by poisoning.
15. Impurities in the reactants result in the industrial catalysts having to be
regenerated or renewed.
16. Catalytic converters are fitted to cars to catalyse the conversion of
poisonous carbon monoxide and oxides of nitrogen to carbon dioxide and
nitrogen.
17. Cars with catalytic converters only use ‘lead-free’ petrol to prevent
poisoning of the catalyst.
18. Enzymes catalyse the chemical reactions which take place in the living cells
of plants and animals.
19. Enzymes are used in many industrial processes.
© Complete Chemistry 1988
Unit 1 Energy Matters
Order of
work
Tick
work
completed
(a) Reaction Rates
Teacher Comments
Following a reactions
Page 1 / Workcard 1
Page 2
Ex File Q 1 to 6
Page 3 / Workcard 2
Page 4 / Workcard 3
Page 5
Page 6 PPA 1
Page 7
Page 8
Affecting Rates
Ex File Q 1 to 6
Quick Quiz 1
Page 9 PPA 2
Page 10
Page 11
Page 12
Page 13 / Workcard 4
Page 14
Quick Quiz 1.2
Page 15
Workcard 5
Catalysts
Page 16
Page 17
Page 18
Page 19
Page 20
Ex File Q 10 to 13
Quick Quiz 1.3
SUMMARY FILE Page 21
SUMMARY FILE Page 22
SUMMARY FILE Page 23
© Complete Chemistry 1988