Traditional Culture Encyclopedia - The 24 Solar Terms - How much water can be evaporated in a day at a temperature of more than 30 degrees?
How much water can be evaporated in a day at a temperature of more than 30 degrees?
The evaporation of water is actually the movement of water molecules to the air side of the contact surface between water and air. From a macro point of view, it is known that water turns into steam. The factors that affect water evaporation are temperature, humidity, surface area of liquid, velocity of air flow above liquid surface, etc.
At the temperature of 20 degrees, the evaporation speed of water is higher than the condensation speed of water, and because the conductivity of water is better than that of air, water evaporates and absorbs heat, most of which is the heat of water, making the temperature of water about 2 to 3 degrees lower than the ambient temperature.
Relationship between water temperature and air temperature: Generally speaking, the temperature of the river is related to the ambient temperature and the density of the river. The temperature of the river near the surface is close to that of the air (due to the rapid heat transfer), and the temperature of the river at the bottom is about 4 degrees (if it is deep enough), because the water density at this temperature is the highest and it is not easily affected by the surface temperature.
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