An evacuated observation balloon after filling with helium gas had an increase in weight equal to
2 g. The volume of the balloon at 250C and 1 atm pressure must be
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Answer:
STP value is 22.4 litres.then there is a balloon weight 2 grams.then we have yo multiply the weight *stp value
22.4*2=44.8litres
Explanation:
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