Subject - Chemistry
Question -
Name the factors that influence the rate of evaporation.
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Answers
The factors which influence the rate of evaporation are as follows :
★ The nature of the liquid
Some of the liquid evaporate rapidly whereas some evaporate very slowly.
Weaker the forces of attraction between the constituent particles of a liquid greater is the tendency of the liquid to go into vapour state.
★ Temperature
The rate of evaporation increases with increase in temperature this is because more number of molecules of the liquid get through energy to pass into vapour state.
★ Surface Area
If the surface area is increased the rate of evaporation also increases.
★ Humidity of Air
If the amount of water vapour in air is not much we say that humidity is low and air appears to be dry but when the amount of water vapour is last the air appears to be damp because of high humidity. When humidity is low the air can take up more water vapour and evaporation is faster.
★ Wind Speed
The rate of evaporation of a liquid increases with increasing wind speed and air calculation.
1 increase in surface area increases the rate of evaporation
2 decrease in surface area decreases the rate of evaporation
3 humidity
4 wind