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I believe that since the vacuum is absent of matter, there is not matter to which the heat of the outside of the container can pass on its heat. In other words, if there was air inside the tude instead of a vacuum, the hotter outside of the container would make the air hot inside the walls of the container, so thus the hot air would make the inside of the container hot too. This is like a chain of heat, as the heat moves from matter to matter, bbut the vacuum limits the matter in the chaing, so less heat is passed onto the nitrogen.

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Why is vacuum the best thermal insulator?

Heat travels in 3 ways. Conduction, convection and radiation. Conduction is the transfer of heat through collision of particles. Convection is the transfer of heat through the movements of particles (ie. hot particle rises, cold particle sinks). Vacuum is made up of nothing (when there is no particle, it is vacuum), and so, it is unable to transfer heat through conduction and convection at all, making it the best thermal insulator


What are the advantages of owning a central vacuum system versus a regular moveable vacuum?

Central vacuums allow for easier cleaning because it is a system installed in the house and you do not have to take it to every room. It seems this method could also save time and prevent dust from blowing back out of the vacuum like it does with a regular vacuum.


What type of energy transfer that can occur in empty space is?

Electromagnetic energy can propogate through a vacuum, so energy transfer can occur in the form of light, heat, x rays, gamma rays, gamma rays etc.


What is the purpose of a flask?

A flask is essentially a bottle. * In a labs, glass flasks (Erlenmeyer, Florence) are used for mixing heating and storing solutions. Sometimes they are graduated to show the volume of material that they contain.* Vacuum flasks are more robist, ususally with a side arm to remove gases * Insulated flasks keep things cold like liquid nitrogen


Which transfer of energy occurs mainly through the process of convection?

Energy transfer by convection is primarily restricted to fluids. One of the significant modes of heat transfer is convective heat transfer.

Related Questions

How big is a 2 liter liquid nitrogen container?

About twice the size of a 2 liter soda bottle. Liquid nitrogen is extremely cold- the container must be vacuum insulated, or the liquid nitrogen quickly turn to gas.


Where is the liquid air stored?

In cryogenic laboratories in presence of liquid nitrogen as a coolant. ---------------------------------------- Or perhaps in a vacuum-insulated container caled a "Dewar".


How can I effectively vacuum seal liquids to ensure their freshness and prevent spillage?

To effectively vacuum seal liquids, use a vacuum sealer with a liquid setting and freeze liquids before sealing to prevent spillage. Ensure the bag is properly sealed and leave some space at the top to prevent liquid from being sucked into the machine.


Is Radiation requires a heated liquid to transfer energy?

No, radiation does not require a heated liquid to transfer energy. Radiation is the transfer of energy through electromagnetic waves, such as light or heat, and can occur in a vacuum where there is no matter to carry the energy.


How does a vacuum flask keep hot liquids hot and cold liquids cold?

A vacuum flask is designed with a double-walled construction. The inner wall is coated with a reflective coating to prevent radiation heat transfer, while the space between the walls is vacuum-sealed to prevent heat conduction. This insulation helps to maintain the temperature of the liquid inside, whether hot or cold.


Does radiation require a heated liquid to transfer energy?

No, radiation does not require a heated liquid to transfer energy. Radiation can transfer energy through electromagnetic waves, such as ultraviolet light or x-rays, without the need for a medium like a liquid.


What forms of energy transfer does the vacuum prevent?

Sound, as this is a compression wave through a fluid (liquid or gas) or solid material. The electromagnetic spectrum finds a vacuum no trouble at all. cw: Vacuums prevent convection and conduction but do not prevent radiation.


Why does convection not happen in a vacuum?

Convection requires a medium, such as a gas or liquid, to transfer heat through the motion of the medium itself. In a vacuum, there is no medium to carry the heat, so convection cannot occur. Heat transfer in a vacuum primarily occurs through radiation.


Does conduction work in vacuum?

No, conduction does not work in a vacuum because it requires a medium, such as a solid, liquid, or gas, for the transfer of heat. In a vacuum, there are no particles to transfer heat through direct contact, so conduction is not possible.


Which kind of energy transfer can occur in a vacuum?

Radiation is the type of energy transfer that can occur in a vacuum, such as in space. Radiation does not require a medium (like a solid, liquid, or gas) to propagate, so it can transfer heat and electromagnetic energy even in the absence of particles.


Why conduction can't occur in a vacuum?

Conduction requires the presence of a medium such as solid, liquid, or gas for heat transfer to occur. In a vacuum, there are no particles to transfer heat energy through collisions, so conduction cannot take place. Heat can only be transferred in a vacuum through radiation.


Radiation require a heated liquid to transfer energy?

Radiation does not require a medium like a heated liquid to transfer energy. Radiation can transfer energy through electromagnetic waves, such as light or infrared radiation, and can travel through a vacuum. Heat transfer by radiation relies on the emission and absorption of electromagnetic waves between objects.