CH-611
States of matter
Chemistry · Secondary 3 · Medium · States of matter
Solid Y is heated from . Its temperature rises until , then stays constant at for several minutes before rising again. What happens to the particles of Y while the temperature is constant at ?
- All particles stay fixed in position and only vibrate.
- All particles move freely in all directions far apart.
- Some particles gain energy to slide past each other while others remain fixed.
- Particles lose energy and move closer together.
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