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It can be dried, and clothes become dry, the main reason is that water has the physical property of evaporation, and evaporation is characterized by occurring on the surface of the liquid, which can occur at any temperature, and has nothing to do with vacuum.
The meaning of vacuum refers to the state of gas with a pressure below one atmosphere in a given space and is a physical phenomenon. In the "void", sound cannot be transmitted because there is no medium, but the transmission of electromagnetic waves is not affected by the vacuum. In fact, in vacuum technology, vacuum is aimed at the atmosphere, and when part of the matter in a particular space is expelled to make its pressure less than one standard atmosphere, we generally call this space a vacuum or vacuum state.
Vacuum is often used as a unit of pressure in Pascal or Torr. In the natural environment, only outer space can be called the closest space to a vacuum.
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First of all, the meaning of evaporation: the phenomenon of a substance changing from a liquid state to a gaseous state is called vaporization. The peaceful vaporization phenomenon that occurs on the surface of a liquid is called evaporation.
Characteristics of evaporation:
Occurs on the surface of a liquid; It can occur at any temperature;
Slow progress of vaporization ; It needs to absorb heat from surrounding objects. In a vacuum, the molecules on the surface of the water are moving irregularly all the time, and some molecules must be separated, so it can be regarded as evaporation from a microscopic point of view, but this is very weak and negligible on the macroscopic level, and the degree of evaporation of water molecules can only be calculated at the molecular level.
So it won't evaporate, so let's not talk about it for thousands of years.
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Will let the water be distributed.
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Whether wet clothes can be dried in a vacuum hood depends on the conditions, such as the size of the vacuum hood, the temperature .......
1. This problem is a bit out of reality, logically speaking, the moisture of wet clothes in a vacuum can also evaporate, it will evaporate into the space, if the cover is cold and large enough, the evaporated moisture will condense on the cover, if it is a sealed larger space, the moisture can not run out, the moisture can only exist in the form of liquid and steam, **cold, it will condense in**. Finally, a state of equilibrium is reached. If the vacuum hood is small and there is no extra space, the moisture has nowhere to go but to stay on the clothes.
Just like a light bulb, tungsten filaments evaporate in the bulb and are deposited on the glass shell, which turns black.
2. Even in the atmosphere, clothes are not absolutely dry, they contain a certain amount of moisture, and the air also has a certain humidity.
3. Dry and wet are relative, so the general humidity is called relative humidity (relative humidity can be expressed as the ratio of the partial pressure of water vapor in moist air to the saturation pressure of water at the same temperature).
4. If in a very small sealed space, water vapor cannot be diffused to the outside space, then the humidity of the small space will be very large, and the clothes will not be able to "dry", there must be enough diffusion space or the temperature is very low. humidity can be dropped.
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Vacuum compression bags can be used to hold clothes.
The specific steps are as follows:
1. Dry and fold the clothes and quilts that need to be stored.
2. Fold the clothes and quilts into a shape that is easy to store (similar to a compressed bag) and put them in the bag as much as possible, at least a few centimeters away from the sealing zipper, so that the bag will not be squeezed and easy to seal.
3. Check whether the zipper sealing part is clean before closing the zipper, whether there are fine fibers or dust, and if so, please wipe it clean with a water-soaked rag.
4. After installing the slide, press the slider zipper with your hand, slowly pull it to the other end of the zipper, and when it is halfway through, squeeze the clothes or quilt to expel most of the air, and then quickly use the slider to pull the remaining half up (so that you can save a lot of time and effort when pumping with a hand pump).
5. Pump with manual air pump: open the valve cover, aim the air pump at the nozzle mouth, and pull the piston to pump the air.
6. Cover the air valve cap and finish.
7. When you need clothes, open the closed zipper and take out the clothes quilt to dry, and then you can restore the original state.
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