(a) describe the effect of concentration, pressure, particle size and temperature on the speeds of
reactions and explain these effects in terms of collisions between reacting particles
(b) define the term catalyst and describe the effect of catalysts (including enzymes) on the
speeds of reactions
(c) explain how pathways with lower activation energies account for the increase in speeds of
reactions
(d) state that some compounds act as catalysts in a range of industrial processes and that
enzymes are biological catalysts (see 5(b), 6.1(c) and 10(d))
(e) suggest a suitable method for investigating the effect of a given variable on the speed of a
reaction
(f) interpret data obtained from experiments concerned with speed of reaction
O Level - Combined Chemistry
(a) describe the effect of concentration, pressure, particle size and temperature on the speeds of
reactions and explain these effects in terms of collisions between reacting particles
(b) interpret data obtained from experiments concerned with speed of reaction
- Syllabuses from SEAB
This section is not covered in the N(A) Level (Combined Chemistry) syllabus.
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