How does evaporation differ from boiling
Answers
Evaporation and boiling are two different aspects of water related to temperature.
Evaporation takes place at all temperatures from the surface of the water in the container, while boiling takes place at a particular temperature - 100 degrees C in case of pure water - in the whole volume of water inside the container.
Evaporation rates are low at lower temperature and high near the boiling point- evaporation takes place from a snow field as well. At zero pressure, or in vacuum, evaporation still occurs. As the atmospheric pressure decreases (as we up the mountains or hills) the boiling point of water decreases, but evaporation is more due to reduced atmospheric pressure. As evaporation takes place, the moisture laden air near the water surface becomes lighter and so rises and to replace the air so lost, cool air from the surrounding area rushes and you feel the cooling effect.
Answer:
evaporation takes place naturally whereas boiling does not take place naturally