|Class 9 Chemistry Matter In Our Surroundings||Evaporation causing coolness|
Evaporation causing coolness
The phenomenon of evaporation takes place in the presence of heat. During this phenomenon the liquid absorbs the heat energy from the surrounding to recover the energy gone astray during evaporation. This absorption of heat energy from the surrounding makes the surrounding area cool.
Due to this fact when you pour acetone on your palm you feel cool because the acetone evaporates by absorbing the heat energy from your palm leaving your palm feel cool.
Fig. Acetone used to remove nail paint makes you feel cool when dropped on skin