Question

what is evaporation ?what are the factors affecting it

Answer 1

Evaporation is the physical process of conversion of a liquid into its vapour state from its surface, with the absorption of heat, at any temperature below the boiling point.

The factors affecting Evaporation are :

1. Wind, the more the wind blows, the more is the rate of evaporation. for example : clothes dry faster under a fan.

2. Heat, the more the temperature, the more is the rate of evaporation. for example, in summer clothes dry faster than in winter.

3. Surface area of the liquid,the more the surface area,the faster it will evaporate; for instance, a wet cloth spread out dries faster than when folded.

4. Dryness assists evaporation; for instance, clothes dry faster in summer than during the monsoon when the air is humid.

5. Rate of evaporation depends upon the nature of the liquid; for example, petrol evaporates faster than water.

6. Vapor pressure: if pressure is applied on the surface of a liquid, evaporation is hindered; consider, for example, the case of a pressure cooker

Hope This Helps!

Answer 2

Evaporation is a surface phenomenon. Particles from the surface gain enough energy to overcome the force of attraction present in the liquid and change into vapour state.

The factors affecting it are

#an increase of surface area

# an increase of temperature

# a decrease in humidity

# an increase in wind speed

(velocity)

Hope it will help you ✌✌

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