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JAMB Chemistry 2008 Question 6

Question 6

Kinetic Theory and States of Matter

Diffusion is slowest in solid particles than in particles of liquids and gases because

  1. A.solid particles have more kinetic energy than the particles of liquids and gases
  2. B.solid particles have less kinetic energy than the particles of liquids and gases
  3. C.solid particles have less restrictions in their movement than liquid and gas particles
  4. D.the particles in solids are far apart and the cohesive forces between them are negligible.
Show the answer and explanation

Answer: B (solid particles have less kinetic energy than the particles of liquids and gases)

Explanation

Particles in a solid have the least kinetic energy and only vibrate about fixed positions, so they mix (diffuse) most slowly.