Question

State True or False :

Evaporation or perspiration cools our body.

• A. True
• B. False

Answer 1

The correct option is A True

Evaporation or perspiration cools our body, it is true . Because molecules of sweat in perspiration , having higher kinetic energy and it goes out in the form of sweat, hence the average kinetic energy (internal energy) of molecules in sweat decreases, therefore, its temperature gets down and we feel cooler .