At what point do the particles in a substance have the most kinetic energy?

JAMB Chemistry 2023 58 views

At what point do the particles in a substance have the most kinetic energy?

  1. Solid state
  2. Liquid state
  3. Gas state ✓
  4. Plasma state

Explanation

Gas particles move freely at high speeds with minimal attraction between them. This unrestricted motion gives gas particles the highest kinetic energy among normal states of matter.

Solid particles only vibrate in fixed positions, while liquid particles slide past each other. Gas particles fly through space at much higher speeds than either solids or liquids.

The high kinetic energy in gases explains why they expand to fill containers and exert pressure on walls. The fast-moving particles constantly collide with surfaces around them.

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