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JAMB Chemistry 2003 Question 29

Question 29

Energy Changes

When sugar is dissolved in tea, the reaction is always accompanied by

  1. A.positive entropy change
  2. B.negative entropy change
  3. C.no entropy change
  4. D.a minimum entropy change.
Show the answer and explanation

Answer: A (positive entropy change)

Explanation

Sugar molecules spread out from an ordered crystal into the liquid, so disorder (entropy) increases: a positive entropy change.