Question

свойства воздуха при изготовлении двойных стеклопакетов А)увеличенный при нагревании В)плохая проводимость тепла С)сжимание при охлаждении Д)поддерживает горение Срочно!!!​

Answer 1

Ответ:

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Объяснение:

Answer 2

Properties of Air in the Manufacture of Double Glazed Windows

When it comes to the manufacture of double glazed windows, air is commonly used as an insulating gas between the two glass panes. Air possesses several properties that make it suitable for this purpose. Let's explore these properties in detail:

A) Increased Volume upon Heating: Air expands when heated, which is a beneficial property in the manufacturing process of double glazed windows. As the air between the glass panes heats up, it expands, creating a higher pressure within the sealed unit. This increased pressure helps to enhance the insulating properties of the window by reducing heat transfer through conduction and convection. The expansion of air also helps to minimize the risk of condensation forming within the sealed unit [[1]].

B) Poor Thermal Conductivity: Air has a relatively low thermal conductivity, meaning it is a poor conductor of heat. This property is advantageous in double glazed windows as it helps to reduce heat transfer between the interior and exterior of a building. The trapped air between the glass panes acts as an insulating barrier, preventing the transfer of heat from the warmer side to the cooler side. This results in improved energy efficiency and thermal insulation [[2]].

C) Compression upon Cooling: When air cools down, it contracts or compresses. This property is important in the manufacturing process of double glazed windows because it allows for the accommodation of temperature changes. As the air between the glass panes cools, it contracts, reducing the pressure within the sealed unit. This contraction helps to prevent the glass panes from cracking or breaking due to the pressure difference between the interior and exterior of the window [[3]].

D) Supports Combustion: Air is essential for supporting combustion. However, in the context of double glazed windows, the presence of air between the glass panes does not pose a significant risk of combustion. The sealed unit is designed to prevent the ingress of external air, reducing the oxygen supply and minimizing the risk of fire. Additionally, the use of tempered or laminated glass in double glazed windows further enhances their fire resistance [[4]].

In summary, air possesses several properties that make it suitable for use in the manufacture of double glazed windows. These properties include its increased volume upon heating, poor thermal conductivity, compression upon cooling, and its ability to support combustion, which is managed through the design and construction of the sealed unit.

I hope this information is helpful! Let me know if you have any further questions.