Science, asked by sadaqatzeemal, 9 months ago

Describes how two a vacuum flask keeps cold drinks cold and hot drinks hot?

Answers

Answered by Hansika124

3

Answer:

Explanation:

The vacuum prevents conduction. The tight stopper prevents air from entering or leaving the flask, so convection isn't possible either. ... There's virtually no way heat can escape from a vacuum flask and a hot drink stored inside will stay steaming hot for several hours. Flasks also work for cold drinks.

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