Solids Fluids

If mass-energy equivalence is taken into account, when water is cooled to form ice, the mass of water should

  1. first increase then decrease
  2. increase
  3. decrease
  4. remain unchanged

Answer

According the law of mas energy equivalence the mass and energy remains conserved but when water freezes then there is a change in energy and due the change in energy the mass of water increases.

The correct option is B.