The temperature of a body decreases when drops of liquid placed on it evaporate because?
Answer Details
When drops of liquid are placed on a body, they will evaporate if the body temperature is higher than the boiling point of the liquid. Evaporation is a cooling process that occurs when molecules escape from the surface of a liquid and take away heat energy with them. In the case of drops of liquid on a body, the heat energy required for the phase transition from liquid to gas is drawn from the body, causing it to cool down. This is known as the heat of vaporization, and it is the reason why the temperature of a body decreases when drops of liquid placed on it evaporate.
Therefore, the correct answer to the question is "the heat of vaporization is drawn from the body causing it to cool".