Question

what is evaporation? and tell me the application of evaporation in daily life.

Answer 1

Evaporation is a type of vaporization, that occurs on the surface of a liquid as it changes into the gaseous phase before reaching its boiling point.[1] The surrounding gas must not be saturated with the evaporating substance. When the molecules of the liquid collide, they transfer energy to each other based on how they collide. When a molecule near the surface absorbs enough energy to overcome the vapor pressure, it will "escape" and enter the surrounding air as a gas.[2] When evaporation occurs, the energy removed from the vaporized liquid will reduce the temperature of the liquid, resulting in evaporative cooling.[3]
1) Hot tea gets cool over time due to evaporation - hot molecules on the surface gets evaporated taking away heat with them.
2) Wet clothes dry in sun due to evaporation - the water in wet clothes takes heat energy from sun and gets evaporated.
3) Evaporation of perspiration from body - Sweat on our body evaporates taking away heat from our body
4) Drying of a mopped floor
5) Drying of wet hair after some time
6) drying up of water bodies like lakes and rivers
7) Evaporation of water from earthen pots
8) Evaporation of water sprinkled on ground or roof top
9) Evaporation of nail paint remover when applied on nails - acetone in nail paint remover takes heat from our body and evaporates.
10) Preparation of common salt from sea water by evaporation

Answer 2

Q. What is evaporation? What are the applications of evaporation in daily life?

Answer :

EVAPORATION
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The process of conversion of a liquid into its vapour state at any temperature below it's boiling point is called evaporation.

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APPLICATIONS OF EVAPORATION IN DAILY LIFE :
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◼ Drying of clothes after washing.

◼ Using fans or desert cooler to get relief during summer season.

◼ Keep water in earthen pots to keep it cool.

◼ Wearing of cotton clothes in summer as they easily absorb sweat and help in its easy evaporation.