Question

If we take 2 wet handkerchiefs and keep one handkerchief in the room under a moving fan and the other handkerchief in the room where fan is off.what will happens after 1 hours ?
Note down ur observation ..!!

Answer 1

Two Wet handkerchiefs are taken.
one handkerchief is kept in the room under a moving fan and the other handkerchief in the room where fan is off. we observe that handkerchief under fan dries faster .
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REASON:
1. Water from the handkerchief under fan evaporates faster as Wind speed helps in escaping of water molecules from the surface of the handkerchief.
2. Rate of evaporation increases with increase in wind speed .
3. so, handkerchief under fan dries faster than the one where fan is off.
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Answer 2

the handkerchief that is kept in the room under a moving fan will dry faster