Edexcel IGCSE Chemistry Physical chemistry topic questions

Physical chemistry focuses on energy changes, rates of reaction, reversible reactions and equilibria.

Edexcel IGCSE Chemistry Topic 3

Topic Overview

Physical chemistry focuses on energy changes, rates of reaction, reversible reactions and equilibria.

Quote data where useful, use collision theory accurately, and separate observations from explanations in practical questions.

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Question Types In This Topic

  1. Graph and table interpretation questions for reaction rate, temperature change and gas volume data.
  2. Explanation questions using collision theory, activation energy, catalysts and surface area.
  3. Practical evaluation questions about fair tests, controls, repeat readings and sources of error.
  4. Equilibrium questions about reversible reactions and how changing conditions affects yield or position of equilibrium.

Subtopics In Physical chemistry

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3.a Energetics know that chemical reactions in which heat energy is given out are described as exothermic, and those in which heat energy is taken in are described as endothermic... 3.b Rates of reaction describe experiments to investigate the effects of changes in surface area of a solid, concentration of a solution, temperature and the use of a catalyst on the rate of... 3.c Reversible reactions and equilibria know that some reactions are reversible and this is indicated by the symbol ⇌ in equations describe reversible reactions such as the dehydration of hydrated copper(II)...

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