Question

The vacuum in a thermos flask reduces the heat loss due to ________.​

Answer 1

Answer:

The vacuum flask consists of two flasks, placed one within the other and joined at the neck. The gap between the two flasks is partially evacuated of air, creating a near-vacuum which significantly reduces heat transfer by conduction or convection.

Explanation:

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Answer 2

Answer:

Conduction , convection , and radiation

Explanation:

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