Level 1 — Basic Recall (1–10)

1. Describe arrangement of particles in solids.

2. Describe arrangement of particles in liquids.

3. Describe arrangement of particles in gases.

4. Define diffusion.

5. Why do gases expand to fill containers?

6. Define pressure.

7. State Boyle’s law.

8. State Charles’ law.

9. Convert 25°C to Kelvin.

10. Define kinetic particle theory.

Level 2 — Understanding (11–20)

11. Explain why solids have fixed volume.

12. Why do liquids flow?

13. Why do gases compress easily?

14. Explain the relationship between temperature and kinetic energy.

15. Describe how gas pressure increases with temperature.

16. Explain why diffusion is faster in gases than liquids.

17. Describe evaporation.

18. Explain boiling in terms of vapor pressure.

19. Describe melting using particle theory.

20. Explain why ice is less dense than water.

Level 3 — Application (21–30)

21. Use Boyle’s law to solve a pressure–volume problem.

22. Use Charles’ law to find new volume at a different temperature.

23. Calculate total pressure using partial pressures.

24. Explain why balloons shrink in cold weather.

25. Predict boiling point changes with altitude.

26. Apply ideal gas equation to calculate number of moles.

27. Use particle theory to explain viscosity differences.

28. Explain why evaporation causes cooling.

29. Describe the effect of intermolecular forces on boiling points.

30. Predict diffusion rates of gases with different molar masses.

Level 4 — Analysis (31–40)

31. Analyse when real gases deviate from ideal behaviour.

32. Discuss effect of strong intermolecular forces on gas laws.

33. Compare kinetic theory predictions with real gas behaviour.

34. Explain liquefaction of gases using intermolecular forces.

35. Evaluate effect of molecular size on gas behaviour.

36. Predict solubility of gases in high pressure conditions.

37. Compare diffusion rates using Graham’s law.

38. Analyse role of hydrogen bonding in liquid properties.

39. Explain phase changes using energy distribution among particles.

40. Evaluate experimental gas law data for accuracy.

Level 5 — Exam/Challenge (41–50)

41. Derive combined gas law from Boyle’s and Charles’ laws.

42. Calculate gas molar mass from density data.

43. Determine Van der Waals constants from experimental data.

44. Analyse phase diagram to determine critical point.

45. Explain supercritical fluids using kinetic theory.

46. Predict the behaviour of gases at near-zero temperatures.

47. Compare compressibility factors of gases.

48. Discuss the theoretical foundation of the ideal gas equation.

49. Explain why some solids sublime directly without melting.

50. Evaluate the effect of polar vs non-polar molecules on gas behaviour.