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Goutham from Bharathi Vidyalaya Senior Secondary School, asked a question
Subject: Science , asked on 20/8/15

define evaporation. explain various factors effecting evaporation..? plz answer,,!!

Ishan Goyal From Dav School Phillaur, added an answer, on 4/7/12
3670 helpful votes in Science

Evaporation is a surface phenomenon in which the particles at the surface gain enough energy to turn into vapour

FACTORS AFFECTING EVAPORATION
The rate of evaporation increases with–
• An increase of surface area:
We know that evaporation is a surface phenomenon. If the surface area is increased,
the rate of evaporation increases. For example, while putting clothes for drying up
we spread them out.
• An increase of temperature:
With the increase of temperature, more number of particles get enough kinetic
energy to go into the vapour state.
• A decrease in humidity:
Humidity is the amount of water vapour present in air. The air around us cannot hold
more than a definite amount of water vapour at a given temperature. If the amount
of water in air is already high, the rate of evaporation decreases.
• An increase in wind speed:
It is a common observation that clothes dry faster on a windy day. With the increase
in wind speed, the particles of water vapour move away with the wind, decreasing
the amount of water vapour in the surrounding
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Faisal Shooter From Delhi University Sol, added an answer, on 4/7/12
49 helpful votes in Science

The process of a liquid changing into vapour(or gas)even below its boiling point is called evaporation.Evaporation of a liquid can take place even at room temperature,though it is faster at heigher temeratures.Whatever be the temperature at which evaporation takes place,the latent heat of vaporisation must be supplied whenever a liquid changes into vapour(or gas).

FACTORS AFFECTING EVAPORATION:-

The evaporation of liquid depends mainly on on the following factors:

(1) Temperature

(2) Surface area

(3) Humidity

(4) Wind speed

I hope that this answer will be helpfull for you.

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Ishan Goyal From Dav School Phillaur, added an answer, on 4/7/12
3670 helpful votes in Science

Evaporation is a surface phenomenon in which the particles at the surface gain enough energy to turn into vapour

There are a number of factors that affect the rate of evaporation. Some of them are-
Temperature-The higher the temperature, the higher is the rate of evaporation. When the temperature of water is increased the water molecules gain more energy, move faster and escape at a faster rate.
Pressure-If pressure is applied on the surface of a liquid, evaporation is hindered, consider for example, the case of a pressure cooker.
Surface area-Increase in the surface area exposed assists evaporation; for instance, a wet cloth spread out dries faster than when folded.
Concentration of the substance evaporating in the air-If the air already has a higher concentration of the substance evaporating, then the given substance will evaporate more slowly.
Concentration of other substance in the air- If the air is already saturated with other substances, it can have a lower capacity for the substance evaporating.
Concentration of other substances in the liquid- If the liquid contains other substances, it will have a lower capacity for evaporation
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Rahul Rai , added an answer, on 14/9/15
2 helpful votes in Science
Evaporation is a surface phenomenon in which the particles at the surface gain enough energy to turn into vapour FACTORS AFFECTING EVAPORATION The rate of evaporation increases with– • An increase of surface area: We know that evaporation is a surface phenomenon. If the surface area is increased, the rate of evaporation increases. For example, while putting clothes for drying up we spread them out. • An increase of temperature: With the increase of temperature, more number of particles get enough kinetic energy to go into the vapour state. • A decrease in humidity: Humidity is the amount of water vapour present in air. The air around us cannot hold more than a definite amount of water vapour at a given temperature. If the amount of water in air is already high, the rate of evaporation decreases. • An increase in wind speed: It is a common observation that clothes dry faster on a windy day. With the increase in wind speed, the particles of water vapour move away with the wind, decreasing the amount of water vapour in the surrounding
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Anmol Agrawal From Gyan Deep Shiksha Bharati, added an answer, on 4/7/12
24 helpful votes in Science

the process in which water changes into vapours is called evaporation.

factors effecting evaporation are:

1) Humidity

2) Wind speed

3) Temperature

4) Surface area

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Andrea Clare From The Delta Study, added an answer, on 8/7/12
17 helpful votes in Science

Factors affecting evapouration are

  1. Increase in wind sped.
  2. Increase in surface area.
  3. Decrease in humidity.
  4. Increase in temperature.
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Hhhhhh From Bangladesh Himonaik School, added an answer, on 20/8/15
2 helpful votes in Science
evaporation is a process of conversion of liquids into gases below its boiling point without rise in temperature
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Natasha Girish From Air Force School Hebbal, added an answer, on 23/7/13

 "The right to education act is a realistic and achievable goal that will change the face of education in India." debate, against topic.. 
plz reply fast guys!

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