Question

The Thermos flask is made up of a double- walled glass vessel because glass is a

1. Good conductor of heat.
2. Poor conductor of heat.
3. Fluid.
4. Poor insulator

(please answer this )​

Answer 1

Answer:

2 poor conductor of heat

Answer 2

Answer:

poor conductor of heat

Explanation:

The thermos flask is made up of double walled glass vessels because glass is a poor conductor of heat. The thermos flask consists of a double-walled glass vessel which rests inside a metal or plastic case on a cork. The inner wall's external surface and its outer wall's inner surface are silvered.