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Ankita Shree Grade: 11
        A ballon having a capacity of 10000 cubic metre is filled with helium at 20'C and 1 atm preesure.If the balloon is loaded with 80% of the load that it can lift at ground level,at what height will the balloon come to rest? Assume that the volume of the balloon is constant, the atmosphere is isothermal,20'C, the molecular weight of air is 28.8 and the ground level pressure is 1atm.The mass of the balloon is 1.3*1000000
6 years ago

Answers : (1)

SAGAR SINGH - IIT DELHI
879 Points
										

Dear student,


In this case apply gas equation


PV=nRT


n=mass/molecular mass
























































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Sagar Singh


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6 years ago
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