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This is the phenomenon of liquefaction. Liquefaction refers to the process of transforming a substance from a gaseous state to a liquid state, and the gas is exothermic when it is liquefied. There are two ways to achieve liquefaction, one is to reduce the temperature, and the other is to compress the volume. Critical.
It is the maximum temperature at which a gas can be liquefied. Because the volume of the gas usually becomes one thousandth of the original after liquefaction, which is convenient for storage and transportation, it is usually used for some gases (such as ammonia) in reality.
natural gas) due to the critical point of these two gases.
It is higher, so it can become liquid when pressurized at room temperature, while some other gases such as hydrogen and nitrogen have very low critical points, and must be deeply cooled while pressurized, which is called liquefaction. Water on the window glass is due to the liquefaction of water vapor caused by the temperature difference between indoor and outdoor. If it is water outside the glass, it means that the outdoor air is higher than the inside of the car, and if it is indoor water, it means that the indoor temperature is higher than the outdoor.
When the indoor temperature is lower than the outdoor temperature, the glass and the indoor temperature are almost equal, and when the outdoor temperature is higher than the indoor air, the glass will condense into water on the hotter side. Otherwise, water is formed indoors.
This is also the return of the south to the south.
The principle of cause. In the summer, after turning on the indoor air conditioner for a longer period of time, let the window glass temperature.
Dropping, and the air outside is hot and humid, which can cause water to form on the outside of the window glass. In winter, the indoor heating and air conditioning are turned on.
Or after a certain period of heating, the indoor temperature rises, and the outdoor temperature is low, and the window glass will form water on the indoor side. If the temperature difference between indoor and outdoor is very large, the indoor side will also freeze, which is called Ninghua.
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The air conditioner is turned on in the room, and there is water vapor on the window glass inside, which is a typical phenomenon caused by water vapor condensation, and the temperature in the room is relatively good, and the temperature difference is caused.
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In winter, friends in the north and south have such troubles, as soon as the heating season or the air conditioner is turned on, the window glass is full of condensation. In severe cases, it will flow down the window, and excessive humidity can also cause mold and mildew. So, how do you prevent condensation in your windows in winter?
Let's first look at how he came into being in the beginning.
Why do windows "sweat" in winter? This is because the temperature difference between indoor and outdoor is too large, causing the water vapor in the air to be saturated and condense into water. In hot air, the saturation concentration of water vapor is larger, and in cold air it is smaller, which is why we feel drier in winter (especially in the north).
Hotter air is close to a cooler object, the air temperature drops, and the water vapor is supersaturated and condenses, and since this occurs near the surface of the object with a low temperature, the water condenses on the surface of the object.
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It means that the temperature difference between indoor and outdoor is very large, and condensation will be generated on the window glass.
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1.When the air conditioner is turned on in summer, the temperature inside the car is lower than the outside, causing the hot air outside to meet the cold glass, causing the glass to have water vapor.
2.The outside temperature is high, the water vapor saturation pressure is low in the glass, and the saturation pressure of the water vapor near the glass decreases, and when the temperature difference is large enough and the saturation pressure is low enough, the water is liquefied.
3.Dong Biyu turned on the heating in the car, and the temperature outside was low, which destroyed the hot air in Zheng's car and touched the cold glass, so the glass in the car had moisture.
4.The water molecules in the air are constantly moving irregularly. When there is no temperature difference, water molecules keep hitting the glass and flying out of the glass.
Summary. 1.Hot air meets cold glass, causing moisture to become in the glass.
2.When the temperature difference is large enough, the water will liquefy.
3.When the hot air in the car meets the cold glass, the glass inside the car will have moisture.
4.Water molecules in the air are moving irregularly.
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The first question: outside.
Because the temperature inside the house is low, the temperature of the window glass is also low, and the air temperature outside is very high, which is the water vapor in the outdoor atmosphere.
It will condense on the surface of the glass into droplets, so the droplets are on the outside.
Second question: inside.
The principle is the same as the first question, except that it is stupidly warm inside the house and cold outside, so the water vapor in the hot air inside the room will condense into water droplets on the surface of the window pane.
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There is water in the glass inside the window because in the process of installing and making the window, the sealant is not good, resulting in poor sealing performance of the window, air leakage, after the air enters, the water droplets will condense, then it is necessary to remove the broken bridge aluminum and re-apply the sealant. <
There is water in the glass inside the window because in the process of installing and making the window, the sealant is not good, resulting in poor sealing performance of the window, air leakage, after the air enters, the water droplets will condense, then it is necessary to remove the broken bridge aluminum and re-apply the sealant.
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Summary. Hello, it's a pleasure to answer for you! There is water in the window glass:
1. Find a way to remove the sealing strip and evaporate all the water vapor inside, and the inner wall of the glass will slowly return to its original appearance, and then seal it with a new sealing strip. 2. You can also use a hair dryer to blow on the glass, which can also remove the moisture inside, and then seal the perimeter of the window frame with glass glue to ensure that no air will enter. 3. If there are conditions, you can also rush into an inert gas, which can avoid water vapor from entering Note:
There is water in the window, because the sealing of the glass is not good, it enters the air, and the air contains water vapor, which will condense into water droplets under the temperature difference, stick to the inner layer of the glass, and form moisture.
The windows are like this.
Hello, it's a pleasure to answer for you! There is water in the glass of the window: 1. Find a way to remove the sealing pin and the virtual strip, evaporate all the water vapor inside, and the inner wall of the glass will slowly return to its original appearance, and then seal it with a new sealing strip.
2. You can also use a hair dryer to blow on the glass, which can also remove the moisture inside, and then seal the perimeter of the window frame with glass glue to ensure that no air will enter. 3. If there are conditions, you can also rush into an inert gas, which can avoid water vapor entering Note: there is water in the window, because the sealing of the glass is not good, it enters the air, and the air contains water vapor, which will condense into water droplets under the temperature difference, stick to the inner layer of the glass, and form moisture.
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Summary. There is water in the window glass, because the sealing of the glass is no longer good, it enters the air, and the air contains water vapor, which will condense into water droplets under the temperature difference, stick to the inner layer of the glass, and form moisture.
There is water in the window glass Huai stove, because the sealing of the glass has been not well rounded, and it enters the air, and the empty lead gas contains water vapor, which will condense into water droplets under the temperature difference, stick to the inner layer of the glass, and form moisture.
When encountering this kind of problem, you can find a way to remove the sealing strip and evaporate all the water vapor inside, and the inner wall of the glass will slowly return to the original dry and round appearance, and then seal it with a new seal. You can also use a hair dryer to blow on the glass, which can also remove the moisture inside, and then seal the perimeter of the window frame with glass glue to ensure that no air will enter.
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In winter, when there is water on the window of the air conditioner, you can wipe off the water stains on the glass with a dry towel, or use a glass brush to brush the water stains off. To prevent water droplets from reappearing on the dried glass, an anti-fogging agent can be sprayed on the glass to keep the glass bright for a long time.
In order to prevent water stains on the glass, try to make the temperature difference between indoor and outdoor as smaller, and adjust the temperature of the air conditioner as low as possible.
When turning on the air conditioner in winter, it is best to set the air conditioner at about 20 degrees, because overheating the indoor temperature is not good for your health, and it will also cause the air conditioner to be overloaded.
When turning on the air conditioner in winter, you must remember to close the doors and windows, and it is best to stop every two hours or so, open the windows for ventilation, and avoid lack of oxygen in the closed space for a long time.
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<> there are water droplets on the window glass at home because of the large difference between indoor and outdoor temperatures, and the water vapor in the air adheres to the glass when the temperature is low. The condensation of the window not only causes indoor dampness, but also makes the wall moldy and black, causing damage to the glass glue in the window gaps, etc., which is easy to crack and reduce the service life of the window. The solution is to do a good job of thermal insulation treatment for the outdoors, reduce the temperature of the indoor and reduce the temperature difference between indoor and outdoor
1. To do outdoor thermal insulation treatment, you first need to clean up the moldy parts on the windows, and then lay a layer of thermal insulation layer. Use anti-crack mortar to protect the insulation layer in the insulation layer, and then coat it with a layer of asphalt to do a good job of waterproofing. 2. For the indoors, we need to ventilate frequently to ensure the temperature balance between indoor and outdoor, and also ensure that the indoor air is fresh and reduce the generation of pollutants.
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