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JAMB Physics 2009 Question 19

Question 19

Thermal Expansion

At 4°C, the volume of a fixed mass of water is

  1. A.constant.
  2. B.minimum.
  3. C.maximum.
  4. D.zero.
Show the answer and explanation

Answer: B (minimum.)

Explanation

Water is densest at 4°C (anomalous expansion). Since mass is fixed, maximum density means minimum volume.