Physics – 2.1.1 States of matter | e-Consult
2.1.1 States of matter (1 questions)
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(a)
| Solid | Liquid | Gas |
A solid has particles arranged in a fixed, ordered pattern. A liquid has particles that are close together but can move past each other. A gas has particles that are far apart and move randomly.
(b) Gases are compressible because the particles are widely spaced. This allows the space between the particles to be reduced by applying pressure. Solids are not compressible because their particles are tightly packed in a fixed arrangement, leaving little or no space for compression.