Question

on which phenomenon thermos flask works​

Answer 1

The operating principle of the thermos. The liquid in the flask is kept at a constant temperature by limiting wall interaction with the external environment. A Thermos has two walls with a void area inbetween. The inner wall has a reflecting layer to reflect heat radiation from the recipient's interior to the liquid.

Answer 2

Answer:

Explanation:

I THINK IT WORKS ON THERMODYNAMICS ISOLATED SYSTEM AS IT KEEPS THE SYSTEM AWAY FROM SURROUNDINGS PLS MARK ME AS BRAINEST