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Manraj singh
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I mean, isn't the boiling point of water 100 degrees celcius. Even in the hottest of places the temperature does not normally go beyond 45 degrees celcius. So how is all this evaporation taking place?
The molecules of water and air do not all have the same energy. On average they have the same energy but their energies are spread over a range. Air molecules, including free H2O molecules, are all colliding with one another. The same goes for the water molecules. And near the surface, air and water molecules collide. These collisions result sometimes in water molecules in the air sticking to water molecules in the liquid. And sometimes they result in water molecules breaking their hydrogen bonds with others and becoming free.Manraj singh said:I mean, isn't the boiling point of water 100 degrees celcius. Even in the hottest of places the temperature does not normally go beyond 45 degrees celcius. So how is all this evaporation taking place?
Water evaporates from surface water bodies due to the sun's energy. Solar radiation provides enough heat to break the bonds between water molecules, allowing them to escape into the atmosphere as water vapor.
The rate of evaporation in surface water bodies is affected by various factors such as temperature, humidity, wind speed, and surface area. Higher temperatures, lower humidity, and stronger winds can increase the rate of evaporation, while a smaller surface area can decrease it.
Yes, the type of surface water body can affect the rate of evaporation. For example, a shallow pond with a larger surface area will have a higher rate of evaporation compared to a deep lake with a smaller surface area.
Atmospheric pressure plays a minor role in the evaporation of surface water bodies. It mainly affects the boiling point of water, which can impact the rate of evaporation. However, other factors such as temperature and humidity have a more significant impact on the rate of evaporation.
Evaporation from surface water bodies cannot be entirely prevented or controlled, as it is a natural process. However, some human activities, such as building dams or covering the surface of a water body, can reduce the rate of evaporation. However, these actions can also have negative impacts on the ecosystem and should be carefully considered.