Question

When we sweat a lot and feel hot, we switch on the fan. we immediately feel cool. what is the reason? what happened to the Sweat?

Answer 1

• During summer, we perspire more because of the mechanism of our body which keeps us cool.
• During evaporation, the particles at the surface of liquid gain energy from the surroundings or body surface.
• The heat energy equal to the latent heat of vaporization is absorbed from the body, leaving the body cool.
  So When we sweat a lot and feel hot and we switch on the fan. we immediately feel cool Because heat energy equal to the latent heat of vaporization is absorbed from the body.
• Sweat is being evaporated.