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JAMB Chemistry 2009 Question 26

Question 26

Energy Changes

Two equal bulbs, one containing ammonia and the other nitrogen, are opened mouth-to-mouth to each other at room temperature. The entropy in the mixture of gases is likely to

  1. A.remain unchanged
  2. B.increase
  3. C.decrease
  4. D.change
Show the answer and explanation

Answer: B (increase)

Explanation

The gases diffuse and mix, which increases disorder, so entropy increases.