Question

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i. Write a note on Dewar bottle. in detail​

Answer 1

Answer:

is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings.

Answer 2

Answer:

A vacuum flask (also known as a Dewar flask, Dewar bottle or thermos) is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings.

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