Question

give scientific reasons comphor under sublimation, desert cooler cool better on a hot dry day, A gas exerts pressure on the walls of the container​

Answer 1

Explanation:

Desert cooler works on the basis of evaporation. In hot and dry days the moisture level is very low in atmosphere which increases the rate of evaporation. Because of faster evaporation, cooler works well. That's why desert cooler cool better on a hot dry day.