Define evaporation and various factor which …
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Yogita Ingle 6 years ago
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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