A thermos bottle keeps a liquid hot because ........

General Science (Easy) Physics

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A thermos bottle keeps a liquid hot because

it has double walls

it has silvered walls

air between the double walls is removed

heat losses by convection and radiation are largely prevented

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Explanation:

heat losses by convection and radiation are largely prevented

-The technical name of a thermos is a vacuum flask (you will know the reason why, shortly). To keep your drinks hot or cold, it minimizes heat transfer due to conduction and radiation. Convection is not included because convection keeps the temperature in a liquid even.