Question

Describe how a vaccum flask keeps cold drinks cold and hot drinks hot?​

Answer 1

The conduction is stopped with the glass material, the two containers in the vacuum flask stop the Convection and the shiny silver that is presented on the surface stops the radiation. Thus the structure of the vacuum flask stops the possibilities of heat or cold to enter in it.

Answer 2

Answer:

The conduction is stopped with the glass material, the two containers in the vacuum flask stop the Convection and the shiny silver that is presented on the surface stops the radiation. Thus the structure of the vacuum flask stops the possibilities of heat or cold to enter in it