Question

why does the air passing through a desert cooler becomes cool.




please give a short answer​

Answer 1

DESERT COOLERS

Basically desert coolers are used for cooling purpose. (It's in the name itself)

Desert coolers have three sides open faced which are covered with cooling pads . Cooling pads are constantly wetted with the water inside. These also have a fan inside , which constantly helps in the regulation of air from the outside and throws inside the room by cooling it.

Answer 2

The particles of liquid in desert cooler absorb energy from the surrounding to regain the energy lost during evaporation. In summer this is fast. Hence desert cooler cool better in a hot dry day.