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JAMB Physics 1979 Question 10

Question 10

Change of State and Vapours

When the vapour of a substance is in equilibrium with its own liquid, it is said to be

  1. A.gaseous
  2. B.unsaturated
  3. C.liquefied
  4. D.diffused
  5. E.saturated
Show the answer and explanation

Answer: E (saturated)

Explanation

A vapour in dynamic equilibrium with its liquid (as many molecules returning as leaving) is a saturated vapour.