Physics, asked by srivatsasubramp2howm, 1 year ago

explain dewar flask formation
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Answered by swatisharma28589
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Invented by Sir James Dewar in 1892, the vacuum flask consists of twoflasks, 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.

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