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SingaporeChemistryQuick questions
The Particulate Nature of Matter
Quick questions on States of matter and kinetic theory explained: O-Level Chemistry
5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is the three states in the particle model?Show answer
All matter is made of particles. The difference between the states is how those particles are arranged, how far apart they are, and how they move:
What is explaining compressibility?Show answer
Compressibility depends on the space between particles. A gas is easily compressed because there are large gaps between its particles that can be reduced. Solids and liquids are almost incompressible because their particles are already touching, leaving no room to squeeze them closer.
What is q1?Show answer
State the arrangement and motion of particles in a liquid. [2 marks]
What is q2?Show answer
Explain, in terms of particles, why a gas can be compressed but a solid cannot. [2 marks]
What is q3?Show answer
Describe what happens to the particles of a gas when it is heated at constant volume. [2 marks]
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