what is importance of vacuum present between the walls of the thermos flask?
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The heat is prevented from escaping the walls by the process of conduction due to vacuum present between the walls of the thermos. The heat is prevented from escaping through the air by convection due to the tight bottle cap.
Explanation:
The heat is prevented from escaping the walls by the process of conduction due to vacuum present between the walls of the thermos. The heat is prevented from escaping through the air by convection due to the tight bottle cap.
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