Describe how the design of a vacuum flask keeps the liquid inside hot ?

2 answers:

4 0

The gap between the two flasks is partially evacuated of air, creating a near-vacuum which significantly reduces heat transfer by conduction or convection. Vacuum flasks are used domestically to keep beverageshot or cold.

JulijaS [17]4 years ago

3 0

The gap between the two flasks is partially evacuated of air creating a near vacuum which significantly reduces heat transfer by conduction or convection

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Mathematically