Question

Mention the parts of a thermos flask and how does it prevent the transfer of heat

Answer 1

Answer:

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 the flask and the cup over it prevent loss of heat by convection. Heat cannot be lost by conduction or convection because of the vacuum between the two walls.

Explanation:

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Answer 2

Answer:

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 the flask and the cup over it prevent loss of heat by convection. Heat cannot be lost by conduction or convection because of the vacuum between the two walls.