Question

Explain the various factors affecting the rate of evaporation of liquid
Guys please write a wonderful answer

Answer 1

pressure, temperature,humidity and wind ,composition of water

1.Temperature:It is also affected by temperature. As the temperature of air is increased, its capacity to hold moisture also increases.

Any increase in air temperature raises the temperature of water at the evaporation source which means that more energy is available to the water molecules for escaping from liquid to a gaseous state. Hence evaporation is directly proportional to the temperature of evaporating surface. Warmer the evaporating surface, higher the rate of evaporation.
2. humidity:The rate of evaporation is closely related with the relative humidity of air. Since the moisture holding capacity of air at a given temperature is limited, drier air evaporates more water than moist air.
3.wind speed:Evaporation depends on the wind speed as well. When the winds are light, a thin layer of air just above the surface gets nearly saturated; under the circumstances the difference between the vapour pressure between ground and air is very small.
4. composition of water:Evaporation is inversely proportional to the salinity of water. Rate of evaporation is always greater over fresh water than over salt water. Under similar conditions, the ocean water evaporates about 5 per cent more slowly than the fresh water.

Answer 2

as I think there are 6 factors which effects evaporation rate which are as under
1. Wind assists evaporation; for example in clothes dry faster under a fan.

2. Heat assists evaporation; for example, in summer clothes dry faster than in winter.

3. Increase in surface area exposed assists evaporation; 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.