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Q: Why does hot liquid eventually go cold in a flask?
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What is the Functions of thermos flask with diagram?

The primary function of a thermos flask is to keep liquids hot or cold. There is an outer protective layer with a hollow area inside before the actual area where the liquid is stored. Heat or cold gets trapped in the hollow area and that is what keeps a liquid hot or cold.


Does a thermos freeze liquid?

A vacuum flask keeps hot things hot & cold things cold. Just how it tells the difference is one of the mysteries of the scientific world !


How does thermoflask work?

Thermos Flask is a container that is used to prolong the temperature of a liquid. If a liquid it is hot,the thermos flask will work to make it stay hot longer. The heat will have no way to escape the flask which means the heat will stat longer, causing the liquid to stay hot longer.


What Vacuum flask keeps liquid at same temperature?

There is no way to permanently store heat. The most you can expect, from a high-quality vacuum flask, is to keep the liquid cold, or hot, for a fairly long time. But gradually, some heat will seep in, or out, until the temperature in the vacuum flask will be equal to the temperature of the surroundings.


Is the earths outer core hot solid or hot liquid or cold solid or cold liquid?

cold liquid


What stays hot in refrigertor?

A thermos flask full of hot liquid will stay hot for a time in an operating refrigerator.


Is the outer core a hot liquid or a cold liquid?

hot liquid


How does a vacuum flask reduce heat loss from a hot liquid inside?

Due to open space isolating the flask from external temperature


Is the earths outer core a hot liquid or a cold liquid?

hot liquid


What is A container to keep drinks cold?

A flask. It also keeps drinks hot.


The presence of -------------- in a thermos flask keeps the substances either hot or cold?

A vacuum is the answer.


Why is the inside of a vacuum flask shiny?

To reflect radiation back, where from it is coming. So hot contains will remain hot and cold will remain cold.