Grade 10 Physical Sciences · Matter and Materials

State and explain the gas laws

State the gas laws, like Boyle's law, and explain gas behaviour with moving particles (squeezing a gas makes particles hit the walls more often).

past paper questions use it
6 past paper questions use it
videos
4 videos

Learn it: state and explain the gas laws

Pick one and watch it, then try the questions below. Videos load only when you tap play.

Gas Laws Grade 11: Motion of particles and kinetic theory of gasesMiss Martins Maths and Science
Boyle's Law Grade 11 Gas LawsMiss Martins Maths and Science
Grade 11 - Gas Laws | Charles’ Law | Mlungisi NkosiMlungisi Nkosi Maths & Science
Ideal Gas vs Real Gas: Grade 11 Gas Laws ChemistryMiss Martins Maths and Science

Now try it on a real exam question

No sign-up. Takes 3 minutes.

Question 4.3 · November 2025 · Paper 2 · Provincial · 3 marks

A group of learners investigated the relationship between the pressure and volume of a certain gas. The graph of the pressure versus inverse of volume was obtained from the data in the investigation.Diagram for this question
4.3 Explain the relationship observed between pressure and volume by referring to the kinetic molecular theory.(3)

Work it out on paper first. Then mark yourself with the official memo, one tick at a time.

More past paper questions: state and explain the gas laws

Work each one out first, then open the memo and check every tick.

  1. 3. Question 1.3 · November 2024 · Paper 2 · Provincial · 2 marks

    1.3 Which ONE of the following is NOT a property of the ideal gas?(2)
    1. A There are no forces of attraction between the molecules.
    2. B The collisions between molecules are elastic.
    3. C The volume occupied by the gas is equal to the total volume of the gas molecules.
    4. D It has a low density.
    Show the memo (1 tick)
    1. ✓
      Properties of an ideal gasIn an ideal gas the molecules themselves have negligible volume compared with the volume of the container, there are no intermolecular forces and collisions are elastic. So the statement that the gas volume EQUALS the total volume of the molecules is not true of an ideal gas.

      Answer: C

      2 marks · State and explain the gas laws

Free on Android

Know exactly which skill is costing you marks.

Mark past papers tick by tick in the NavyBlue app. It remembers every mark you lose, shows you the skills to fix first, and picks your next questions.

Get NavyBlue free on Google Play
The NavyBlue app showing a learner's weak skills