Exercise 1 — IGCSE 0654 Jun 2024 Paper 31 Q5
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Cambridge IGCSE·Co-ordinated Sciences 0654·Chemistry
Solids Liquids Gases
Key knowledge — States Of Matter Particles
Key facts & rules
- Solid: particles close together in a regular lattice, vibrate in fixed positions.
- Liquid: particles close together but random arrangement, free to move past each other.
- Gas: particles far apart, random, move rapidly in all directions.
- Melting: solid → liquid (at melting point). Boiling: liquid → gas (at boiling point).
- Condensation: gas → liquid. Freezing/Solidification: liquid → solid. Sublimation: solid → gas directly.
- Kinetic theory: particles are always moving; higher temperature = higher average kinetic energy.
- Diffusion: particles spread from high to low concentration. Faster in gases than liquids.
- Brownian motion: random movement of particles in a fluid, caused by collisions with invisible molecules.
IGCSE Chemistry — Solids, liquids & gases
4 Cambridge IGCSE 0654 questions on solids, liquids & gases, across all three components.
About solids, liquids & gases on IGCSE 0654
Every Cambridge IGCSE Co-ordinated Sciences 0654 question on solids, liquids & gases (States of matter & particles, Chemistry), across all three exam components. Theory and alternative-to-practical come with full mark schemes; multiple choice is interactive — click an option to check it.
Theory
Solids, liquids & gases — Core theory questions1 total · Paper 3
Solids, liquids & gases — Extended theory questions2 total · Paper 4
Exercise 2 — IGCSE 0654 Jun 2023 Paper 41 Q2
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Exercise 3 — IGCSE 0654 Nov 2022 Paper 41 Q5
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Multiple choice
Solids, liquids & gases — Core multiple choice questions1 total · Paper 1
Exercise 1 — IGCSE 0654 March 2025 Paper 12 Q14
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Correct answer: B