Explain the structure and functioning of thermometer containers- - Vidyadip

Question

Explain the structure and functioning of thermometer containers-

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Answer

Thermoware containers keep food hot. These containers consist two boxes fitted one inside the other.
The outer box is made up of plastic while the inner one is made up of a shiny metal, there is air between the two boxes.
Air is a bad conductor of heat. Thus, heat is not lost by either conduction or convection. Also, the shiny inner surface prevents heat loss due to radiation.
The container has a plastic lid. This also prevents any transfer of heat.

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