Why does the evaporation of water cool the air near the water's surface?

Question

Answer needs to be scientific.

Answer 1

The physical process of the evaporation of water is an exergonic one (delta G < 0 ) but it is an endothermic (delta T > 0 ).
The necessary energy to break the hydrogen bonds between water molecules in the liquid releasing them into the air is thermal energy taken from the liquid, thus cooling it!
That is the physiological mechanism of cooling body temperature through sweat evaporation.
It is fascinating!
Hope it helped.

Answer 2

Evaporation From Water Surface

Answer 3

The temperature of a body of water is it's average temperature. Each individual molecule can actually have a different temperature which will change as the molecules bump around in the water and exchange energy. When a molecule near the surface has enough energy to evaporate, it can escape from the body of water into the air. Since only the hottest molecules can evaporate, they leave behind the cooler ones. This lowers the temperature of the water.
Evaporating water actually only cools the air indirectly. It cools the water. Then the water cools the air.

Answer 4

Because the evaporation cycle that moves water molecules into the upper atmosphere also carries the heat upward via a heat transfer mechanism. This sudden removal of heat, leaves the remaining air constantly cooler. As long as the weather system creating these cycles continues, these mechanisms for moving moist, humid, water laden air from the water's near surface to the upper atmosphere will continue to produce that cooler refreshing surface condition.

Answer 5

Evaporating water takes energy, the latent heat of evaporation. This energy has to come from somewhere. It will come from both the surface layer of the water and the air close to the water's surface.

Answer 6

When particles collide they exchange energy, ie heat. Now when a molecule is in liquid state it is constantly colliding with other particles inside the liquid and transfering or receiving heat. When its energy reaches a certain level it becomes gas and leaves the liquid and with it some of the heat energy leaves the liquid. So the liquid cools off. This is more prevelant at the surface as the molecules in the lower levels still have plenty of neighbors to collide and receive heat.

Answer 7

energy cannot be created nor can be destroyed. It can only be transfered. Hence when evaporation takes place the heat from the surrounding area is transferred to water and hence it is becoming cool.

Answer 8

because the energy of evaporation is changing its air molecules?

Answer 9

it is due to dynamic equilibrium