Science, asked by nehamhatre7201, 5 months ago

Draw a neat and labelled diagram of a thermos
flasks

Answers

Answered by beliver4578
7

Heat transfer is minimized because of ☆

● The vacuum between the two walls, rubber, glass, cork and air do not allow the loss of heat by conduction.

● Cork in the neck of flask and the cup over it prevent loss of heat by convection.

● Heat cannot be lost by conduction or convection because of vacuum between the two walls.

● Heat loss is also minimized by radiation, by making outer surface of inner wall and inner surface of outer wall silvered. The inner wall is a bad radiator and the outer wall is a good reflector of radiation.

HOPE IT HELPS

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Answered by judith28ab
1

Answer:

refer the attachment below:)

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