Why the lake is white in the winter can be explained physically

Because the temperature of the lake water is higher than that of the air, the evaporated water vapor on the lake surface quickly condenses into ice crystals after encountering cold air, showing the phenomenon of "white vast clouds".

Since January 6, 2021, under the influence of strong cold air, Qingdao has experienced strong winds to cool down, and issued a yellow warning signal for cold waves, with a minimum temperature of -16. And when the air temperature above the sea suddenly drops below -10, due to the sea temperature.

Above the air, the water vapor evaporated from the sea surface quickly condenses into ice crystals after encountering cold air, showing the phenomenon of "white vast clouds and mist", forming a "vast atmosphere".

Specifically, seawater has a larger specific volume than air, and the temperature drop is much smaller than that of air when the same amount of heat is lost. Therefore, under the action of continuous strong winds, the seawater is stirred at an accelerated pace, so that the relatively warm water body below is constantly turning and replenishing to the sea surface. Since the 6th, the super low temperature of minus 15 degrees Celsius has been continuously used for two days, so that the relatively warm water vapor that has been flipped to the sea surface evaporates into the air, combines with the relatively large amount of particulate matter in the winter air, and condenses to form ice crystals when cold, and the ice crystals formed are dispersed by the combined action of wind and warm water vapor on the surface of the ocean, which makes the sea surface look "steamy".

In winter, the temperature of the lake water is higher than the air temperature, and the temperature near the lake surface is higher than that of the lake surface, so the water vapor evaporated from the lake water is liquefied into small water droplets in the air in the low temperature area at a distance from the lake surface, forming "white smoke".

In winter, the temperature of the water body and the air near the water body is relatively high (not less than zero degrees), the air humidity near the water surface is high, when the air flows around the cold air, so that the air near the water surface cools, the relative humidity of the air reaches a critical (100%), it will liquefy into fog, when the fog is carried away by the air near the water surface, mixed with the surrounding cold air (relatively dry), and will vaporize invisible.

In winter, when the temperature is low, the water on the lake surface vaporizes (evaporates), and the vaporized water is cold, cooled, heat-released, and liquefied into water mist floating on the river surface (not white smoke, white smoke is solid small particles, it is white fog).

The evaporated water vapor condenses into a liquid in the air, forming white smoke.

(1) The freezing of the lake surface is the change of lake water from liquid to solid, which is called coagulation;

2) The "white gas" seen when boiling water is formed by the water vapor generated when boiling water rises into the air and is liquefied by cold;

3) The "sweating" of the water pipe is formed by the liquefaction of water vapor in the air when it encounters a relatively cold water pipe;

4) "Ice flowers" are formed by the condensation of indoor water vapor and relatively cold glass windows;

5) Popsicles emit "white gas", which is a small droplet formed by the liquefaction of water vapor in the air when it is cold, so the answer is: coagulation; Liquefy; Liquefy; Sublimation; Liquefy;

(1) The freezing of the lake surface is the change of lake water from liquid to solid, which is called coagulation;

2) The "white gas" seen when boiling water is formed by the water vapor generated when boiling water rises into the air and is liquefied by cold;

3) The "sweating" of the water pipe is formed by the liquefaction of water vapor in the air when it encounters a relatively cold water pipe;

4) "Ice flowers" are formed by the condensation of indoor water vapor and relatively cold glass windows;

5) Popsicles emit "white gas", which is a small droplet formed by the liquefaction of water vapor in the air when cold

6) The sanitary ball in the suitcase is gone, and it is directly changed from solid to gaseous, which is a sublimation phenomenon;

7) In winter, the "white gas" exhaled in the mouth is formed by the liquefaction of the water vapor exhaled from the mouth when it meets the cold air

8) Frost is the water vapor in the air directly turns into Xiaoice crystals when cold, which is the condensation process of water vapor

9) In winter, when people with glasses walk into a warm room from outside, the water vapor in the room will liquefy when it meets the cold lenses to form a large number of small water droplets

10) The molten steel out of the furnace becomes a steel ingot, which is the solidification process of the molten steel

So the answer is: (1) coagulation, (2) liquefaction, (3) liquefaction, (4) coagulation, (5) liquefaction, (6) sublimation, (7) liquefaction, (8) coagulation, (9) liquefaction, (10) coagulation

The weather outside is cold (minus a few degrees Celsius), the temperature inside the river is high (zero degrees), and the meeting of heat and cold produces fog.

The water in rivers and lakes is vaporized into water vapor by evaporation, and in the case of no wind or very small wind, the air flow is slow, and the water vapor formed by gasification takes a long time to diffuse on the water surface, and at this time the temperature is low, and the water vapor is liquefied when it is cold, that is, it forms very fine water droplets, which is the fog we see.

Because the evaporation of river water produces a large amount of water vapor, the water vapor liquefies into small water droplets after encountering cold air, forming a white mist, so it is a liquefaction phenomenon, so B is chosen

(1) The freezing of the lake surface is the change of lake water from liquid to solid, which is called coagulation;

2) The "white gas" seen when boiling water is formed by the liquefaction of water vapor produced when boiling water is cold in the air;

3) The "sweating" of the water pipe is formed by the liquefaction of water vapor in the air when it encounters a relatively cold water pipe;

So the answer is: coagulation; Liquefy; Liquefy;

(1) The freezing of the lake surface is the change of lake water from liquid to solid, which is called coagulation;

2) The "white gas" seen when boiling water is formed by the liquefaction of water vapor produced when boiling water is cold in the air;

3) The "sweating" of the water pipe is formed by the liquefaction of water vapor in the air when it encounters a relatively cold water pipe;

So the answer is: coagulation; Liquefy; Liquefy;

(1) The freezing of the lake surface is the change of lake water from liquid to solid, which is called coagulation;

2) The "white gas" seen when boiling water is formed by the water vapor generated when boiling water rises into the air and is liquefied by cold;

3) The "sweating" of the water pipe is formed by the liquefaction of water vapor in the air when it encounters a relatively cold water pipe;

4) "Ice flowers" are formed by the condensation of indoor water vapor and relatively cold glass windows;

5) Popsicles emit "white gas", which is a small droplet formed by the liquefaction of water vapor in the air when it is cold, so the answer is: coagulation; Liquefy; Liquefy; Sublimation; Liquefy;