IGCSE Chemistry
2026 - 2028
Syllabus Checklist ✅
Topic 11: Rate of Reaction
Physical and Chemical Changes
Identify physical
and chemical changes
, and describe the differences
between them
Factors Affecting Rate
Describe the effect of changing concentration
of solutions on the rate of reaction
Describe the effect of changing pressure
of gases on the rate of reaction
Describe the effect of changing the surface area
of solids on the rate of reaction
Describe the effect of changing the temperature
on the rate of reaction
Describe the effect of adding or removing a catalyst
, including enzymes
, on the rate of reaction
State that a catalyst
increases the rate of a reaction and is unchanged
at the end
Investigating Rates
Describe practical methods for investigating rate, including change in mass
of a reactant or product and the formation of a gas
Interpret data
, including graphs
, from rate experiments
Collision Theory
Describe collision theory in terms of: (a) number of particles per unit volume
(b) frequency of collisions
between particles (c) kinetic energy
of particles (d) activation energy
, E a
Explaining Effects Using Collision Theory
Using collision theory, describe and explain the effect of changing concentration
of solutions on rate
Using collision theory, describe and explain the effect of changing pressure
of gases on rate
Using collision theory, describe and explain the effect of changing surface area
of solids on rate
Using collision theory, describe and explain the effect of changing temperature
on rate
Using collision theory, describe and explain the effect of adding or removing a catalyst
(including enzymes
) on rate
State that a catalyst
decreases the activation energy
, E a
, of a reaction
Evaluating Methods
Evaluate practical methods for investigating rate, including change in mass
and gas collection
methods
✅ Notes Ebook 📖
✅ 60 Lectures 75 min each 📺
✅ Paper 2 Quizzes 💯
✅ Paper 6 Practicals 🔬
✅ Solved Past Papers 📝
✅ Track progress with Quizzes & Flashcards
✅ 2 Years access 📆
250$
150$
