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JAMB Physics 2010 Question 19

Question 19

Change of State and Vapours

If a container is filled with ice to the brim, what happens to the level of water when the ice completely melts?

  1. A.The water in the glass outflows
  2. B.The level of water drops
  3. C.The level of water remains unchanged
  4. D.The level of water goes up
Show the answer and explanation

Answer: B (The level of water drops)

Explanation

Ice is less dense than water, so the same mass of water takes up less volume after melting. The level falls below the brim.