Question

Give three observations in daily life in which the evaporation produces cooling.

Answer 1

Evaporation is a process in which liquid molecules absorb energy from their surroundings, overcome the force of attraction, and convert it into a vapor state.

(1). Cotton Clothes produce a cooling effect during summer.

Cotton is an absorber and it absorbs sweat from the body. As sweat comes in contact with the atmosphere it evaporates and a cooling effect is produced.

(2). Cooling of water in earthen pots during summer.

In an earthen pot, water gets evaporated through the pores by which a cooling effect is produced.

(3). A cooling sensation is produced when alcohol is poured on the palm.

Alcohol evaporates quickly so a cooling effect is produced.