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JAMB Chemistry 2000 Question 20

Question 20

Energy Changes

Hydration of ions in solution is associated with

  1. A.absorption of heat
  2. B.reduction of heat
  3. C.conduction of heat
  4. D.liberation of heat
Show the answer and explanation

Answer: D (liberation of heat)

Explanation

When water molecules surround and attract ions, energy is given out, so hydration is exothermic (heat is liberated).