Question

Explain how the Thermos flask prevents heat loss by:

a) conduction
b) convection
c) radiation

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Answer 1

Answer:

The vacuum between the glass walls prevents heat loss by preventing radiation. ... The vacuum prevents the heat loss by conduction because vacuum is a bad conductor of heat. The stopper prevents the heat loss by convection because it is tightly sealed. And the inner reflecting layer prevents the heat loss by radiation.