JAMB Physics 2014 Question 24

Question 24

Change of State and Vapours

The temperature at which the water vapour present in the air just sufficient to saturate the air is

  1. A.ice point.
  2. B.saturation point.
  3. C.dew point.
  4. D.boiling point.
Show the answer and explanation

Answer: C (dew point.)

Explanation

The dew point is the temperature at which the water vapour already in the air is just enough to saturate it, so dew starts to form.