Science, asked by muskan8422, 7 months ago

What is thermo flask ?

Answers

Answered by manyax4

Answer:

A vacuum flask is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings. Invented by Sir James Dewar in 1892, the vacuum flask consists of two flasks, placed one within the other and joined at the neck.

Answered by teena2006rupani

Answer:

It is a container (such as a bottle or jar) with a vacuum between an inner and outer wall used to keep material and especially liquids either hot or cold for considerable periods.

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