Question

why does a desert cooler cool better on a hot dry day?

Answer 1

The cooling in a desert room cooler is due to the process of evaporation.Desert cooler cools betteron a hot dry day because the temperature of the atmosphere increases the rate of evaporation also increases and in hot day the humidity in atmosphere is less.If humidity is less evaporation is more.This gives better cooling

Answer 2

because the desert have high temperature in morning and noon.so when it becomes night the humidity goes down and becomes cool