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JAMB Physics 1979 Question 9

Question 9

Thermal Expansion

In what range of temperature is the expansion of water anomalous?

  1. A.+208°C to +212°C
  2. B.−80°C to −76°C
  3. C.−4°C to 0°C
  4. D.+96°C to +100°C
  5. E.0°C to +4°C
Show the answer and explanation

Answer: E (0°C to +4°C)

Explanation

Between 0°C and 4°C water contracts as it is warmed, instead of expanding; it is densest at 4°C.