How does one measure the capacity of a round bottom boiling flask?

How does one measure the capacity of a round bottom boiling flask?
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1 Answer

Answer :

Fill it and pour it into a liquid measuring jug to measure the capacity.
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Description : Drinks remain hot or cold for a long time in a thermos flask because of the (a) presence of air, which is a bad conductor of heat, in between the double walls (b) silver coating on the inside of the double walls (c) vacuum between the double walls (d) combined effects of (b) and (c)

Last Answer : Ans:(d)

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