Why does the body feel cool when sweat dries?
Answer and explanation
Correct answer: Heat is taken from the body for evaporation of sweat
Drying of sweat is evaporation. Evaporation requires latent heat, which sweat absorbs from the skin and the body surface. As heat is removed, the skin temperature falls and the body feels cool. Cooling is caused by evaporation, not by sweat freezing. Exam tip: evaporation always absorbs heat from its surroundings.
Frequently asked questions
What is the correct answer to this question?
Heat is taken from the body for evaporation of sweat
Why is this the correct answer?
Drying of sweat is evaporation. Evaporation requires latent heat, which sweat absorbs from the skin and the body surface. As heat is removed, the skin temperature falls and the body feels cool. Cooling is caused by evaporation, not by sweat freezing. Exam tip: evaporation always absorbs heat from its surroundings.
Which subject and chapter does this question cover?
This is a Class 12 Geography question. Chapter: Water in the Atmosphere. Topic: Humidity, evaporation, and condensation.
