Physics, asked by himalaykumar96313916, 10 months ago

Explain how a thermos flask keeps the beverages hot or cold for a long time.

Answers

Answered by sharvariumap

2

Answer:

A thermos is a bottle with a double-walled container inside of it. The air between the two walls is sucked out during construction, creating a vacuum. Instead of containing some kind of heating element to keep hot things hot, a thermos is designed to keep hot things hot by not allowing heat to escape.

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