Question

- What is the use of a thermos flask draw a neat labelled diagram of a thermos flask​

Answer 1

Step-by-step explanation:

Thermos flask consists of double glass or metal walls with a space in between them. Air is completely sucked out of this space, and after that the walls are sealed at the neck or at the bottom of the flask.

Answer 2

Answer:

Thermos flask consists of double glass or metal walls with a space in between them. Air is completely sucked out of this space, and after that the walls are sealed at the neck or at the bottom of the flask.