uestionsWhy does a desert cooler coolbetter on a hot dry dayHouse does

1.	uestionsWhy does a desert cooler coolbetter on a hot dry dayHouse does the water kept in aearthen pot (matika) become cool
Answer» 1. Adesert coolercoolsbetter on a hotdry day because on ahotdry day temperature is high and humidity is less which helps inbetterevaporation. Due to the higher rate of evaporation it givesbetter coolingeffect. 2. In anearthen pot,watergets evaporated quickly through the pores. Cooling is caused by evaporation. Some heat energy is utilised during the process of evaporation. Since this energy is taken from thewateritself, it leads to a lowering of temperature in the remaining amount ofwater.

uestionsWhy does a desert cooler coolbetter on a hot dry dayHouse does the water kept in aearthen pot (matika) become cool

Answer»

1. Adesert coolercoolsbetter on a hotdry day because on ahotdry day temperature is high and humidity is less which helps inbetterevaporation. Due to the higher rate of evaporation it givesbetter coolingeffect.

2. In anearthen pot,watergets evaporated quickly through the pores. Cooling is caused by evaporation. Some heat energy is utilised during the process of evaporation. Since this energy is taken from thewateritself, it leads to a lowering of temperature in the remaining amount ofwater.

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