Question: A spherical balloon filled with helium ( specific gas constant 2 0 8 0 J k g K ) at 2 0 C and 4

A spherical balloon filled with helium (specific gas constant 2080JkgK) at 20C and 40
kPa (gage pressure) has an 8-m diameter. What load can it support in atmospheric air
(specific gas constant 287JkgK) at the same temperature and 1 atmospheric pressure?
Neglect the balloon's weight.
A spherical balloon filled with helium ( specific

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