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JAMB Chemistry 2012 Question 7

Question 7

Kinetic Theory and States of Matter

I. Evaporation. II. Sublimation. III. Diffusion. IV. Brownian motion.
Which of the above can correctly be listed as evidences for the particulate nature of matter?

  1. A.I and III only
  2. B.II and IV only
  3. C.I, II and III only
  4. D.I, II, III and IV
Show the answer and explanation

Answer: D (I, II, III and IV)

Explanation

All four can only be explained if matter is made of tiny moving particles that can escape from a surface, spread out, or jostle larger particles.