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What is the scientific principle of making thermos flask?
thermos flask actually works on the principle of insulator. air is trapped between 2 walls of the flask. air being a bad conductor of heat traps it between the walls. this keeps the material in the flask hot for a longer period.add. Actually, usually there is a vacuum between the two walls of the flask, for this is a better insulator than air. hence the name 'vacuum flask'.
Is the thermos flask is in use if it's silvering is removed?
If only the silvering is gone, it can still be used, but it won't be as good. However, quite often the silvering is inside the vacuum compartment; if the silvering has vanished because the glass cracked, it is very probably unsafe to use. A thermal flask works by preventing heat conduction (the vacuum layer will not conduct heat) and by preventing heat radiation (the silver layer reflects the heat back at the contents). Without the silver layer, the heat will not be reflected. The flask will still work, but will lose or gain heat faster that it would if the silvering was intact. Note: The "silvering" on older flasks may be mercury. If the envelope is cracked and the mercury evaporates, it could prove toxic. Newer flasks use aluminum.
How does a Thermos keeps drink warm?
Thermos are double walled containers. Between each wall, the space is vaccuum sealed, so there are no air particles. This decreases the transfer of energy (by convection) from inside the warm drink to outside in the atmosphere. The second way your thermos keeps your drink warm is the shiny surface inside your thermos. Photons carrying energy bounce off the shiny surface inside the thermos, keeping high energy photons around the infrared wavelength inside the thermos. Next time you drink from your thermos, think science!
What is Absolute error of volumetric flask?
The absolute error of a volumetric flask is a measure of the maximum possible difference between the indicated volume and the actual volume the flask can hold. It is typically expressed as a range, such as ±0.03 ml, indicating that the volume of liquid measured using the flask could be off by up to 0.03 ml in either direction.
What is the job of a thermos?
A thermos is designed to keep beverages hot or cold for an extended period of time by providing insulation that minimizes heat transfer. It works by creating a vacuum-insulated chamber that prevents heat from escaping or entering the container, maintaining the desired temperature of the liquid inside.
How stuff works?
Thermos flask It works with a contraption in it which keeps all the heat in the bottom!
What is the scientific principle of making thermos flask?
thermos flask actually works on the principle of insulator. air is trapped between 2 walls of the flask. air being a bad conductor of heat traps it between the walls. this keeps the material in the flask hot for a longer period.add. Actually, usually there is a vacuum between the two walls of the flask, for this is a better insulator than air. hence the name 'vacuum flask'.
How thermos flask works to keep thing hot or cool?
Thermos jugs are just very good insulators. Just like your house, they're designed to keep one or the other of extreme temperatures away from the inside of the jug ...and vice versa. FriPilot
Is the thermos flask is in use if it's silvering is removed?
If only the silvering is gone, it can still be used, but it won't be as good. However, quite often the silvering is inside the vacuum compartment; if the silvering has vanished because the glass cracked, it is very probably unsafe to use. A thermal flask works by preventing heat conduction (the vacuum layer will not conduct heat) and by preventing heat radiation (the silver layer reflects the heat back at the contents). Without the silver layer, the heat will not be reflected. The flask will still work, but will lose or gain heat faster that it would if the silvering was intact. Note: The "silvering" on older flasks may be mercury. If the envelope is cracked and the mercury evaporates, it could prove toxic. Newer flasks use aluminum.
What is the principal of a kaleidoscope?
works on multipal of colours
How do you eat a thermos flask?
To set about eating a thermos flask you would first need to recognise what the flask is made of. The simplest thermos will have an inside layer of glass, surrounded by air, surrounded by an outside layer of glass, with both these layers covered in mercury or something similar, and the whole thing covered in plastic or metal. The first step in eating the flask would be to separate all these layers. Heavy tools will help to smash the glass and mercury and remove them from the tougher outer casing. Glass can be broken down and eaten pretty easily. Some people have a party trick of eating lightbulbs or wine bottles, and they can do this because it won't actually cut your mouth like you think it would. So long as you chew in a slow, controlled fashion, and use your tongue to adjust any pieces that feel sharp against your mouth, you should be able to eat the glass pretty easily. The mercury should also be pretty easy, as the layer will be thin and crumple up with little effort. This layer is also probably poisonous, so it is recommended you leave eating the mercury til last. The outer casing will provide the biggest problem, as it will be made of a robust material that cannot be easily chewed or digested. If it is plastic, then a particularly strong grater will be able to prepare it for eating as a condiment on your usual meals. If it is metal, then you will need to ask a local blacksmith or anyone who works with hard machinery to reduce the metal into filings which can be used in much the same way.
How can I effectively utilize thermos cooking to prepare meals on-the-go?
To effectively use thermos cooking for on-the-go meals, simply heat your food to a high temperature, then transfer it to a preheated thermos. Let it sit for a few hours to cook through. This method works well for soups, stews, and other dishes that require slow cooking.
How does a Thermos keeps drink warm?
Thermos are double walled containers. Between each wall, the space is vaccuum sealed, so there are no air particles. This decreases the transfer of energy (by convection) from inside the warm drink to outside in the atmosphere. The second way your thermos keeps your drink warm is the shiny surface inside your thermos. Photons carrying energy bounce off the shiny surface inside the thermos, keeping high energy photons around the infrared wavelength inside the thermos. Next time you drink from your thermos, think science!
How does a thermos bottle work?
It uses as vacuum to insulate the inside from the outside. The vacuum reduces the different ways heat can be dissipated; mainly conduction and convection. Very importantly, a Thermos bottle, scientifically called a "Dewar's flask," incorporates a radiant barrier that directs radiant heat back into the hot liquid in the bottle. You can usually see the radiant barrier when the flask incorporates a glass liner, the barrier is the shiny material across the vacuum from the glass. The three ways heat can move are conduction, (through a solid), convection, (through a gas or liquid), and radiation, (through a gas or vacuum). The Dewar's flask addresses all three of the means of heat transfer, that is why it is so efficient. that is true trust me
Rocket works on the principal of conservation of?
newtons law of motion
How does a thermos flask keeps a hot liquid hot and a cold liquid cold?
A thermos is able to do what it does by using a several of physical and material properties to keep our hot chocolate hot and our ice tea icy. A thermos has an inner container made of glass. This container is really like one bottle inside of another bottle and sealed at the ends by melting the edges together. The air is removed out from the space between the two bottles to produce a vacuum, which is not a good conductor of heat and does a good job at slowing down the movement of heat. To slow down the other heat they coat the facing surfaces of the glass bottles with a silvery coating (like a mirror). This reflects the heat and helps slow down any losses that might get that way. They use a material like cork or rubber to make the bottle stopper and anything else that might touch the outside surface of the glass container. These materials are bad conductors of heat and slow down the heat loss. What's left is what we can see on the outside which can be metal or plastic and is the covering for the glass bottles. The idea here (with the thermos) is to slow down the movement of heat from one place to the other. So if you have hot stuff in the thermos or cold stuff in the thermos, the end result is the same. Keep heat from moving to where you don't want it to go for as long as possible. NB It's worth mentioning that modern vacuum flasks (Thermos being a trade name) are made almost entirely of stainless steel, inside and out - it doesn't shatter and is naturally reflective, although not polished to a mirror shine when used as a flask inner. Modern stoppers are also made of plastic.
What happens in each part of the distillation equipment?
In distillation equipment, the process begins in the boiling flask, where the liquid mixture is heated to evaporate the more volatile components. The vapor then travels through a condenser, where it cools and reverts to liquid form, separating from the less volatile components left behind in the boiling flask. The condensed liquid, called the distillate, is collected in a receiving flask. Each part of the apparatus works together to effectively separate components based on their boiling points, resulting in purified substances.
