why the rate of loss of thermal energy through the walls of the flask by conduction is very low
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Answer: VACUUM IS THERE BETWEEN THE GLASS SURFACE
Explanation:
THE CONDUCTION OF HEAT IS VERY SLOW AS HEAT CANNOT BE CONDUCTED THROUGH VACUUM.IT NEEDS A MEDIUM SUCH AS AIR.GLASS IS ALSO AN INSULATOR THUS REDUCING LOSS OF HEAT ENERGY
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