Explain the four factors affecting evaporation
Answers
Answer:
Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.
The rate of evaporation is affected by,
(1) Temperature: Evaporation increases with an increase in temperature.
(2) Surface Area: Evaporation increases with an increase in surface area.
(3) Humidity: Evaporation decreases with an increase in humidity.
(4) Wind speed: Evaporation increases with wind speed.
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.
u were asking for 4 i have given u 6