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JAMB Chemistry 1978 Question 12

Question 12

Energy Changes

When heat is absorbed during a chemical reaction, the reaction is said to be

  1. A.thermodynamic
  2. B.exothermic
  3. C.isothermal
  4. D.endothermic
  5. E.thermostatic
Show the answer and explanation

Answer: D (endothermic)

Explanation

A reaction that takes in heat from the surroundings is endothermic (ΔH is positive).