A spherical balloon with a diameter of 9 m is filled with helium at 20°C and 210 kPa. Determine the mole number and the mass of the helium in the balloon. Take the molar mass of helium to be 4.003 kg/kmol. The universal gas constant is kJ kmol-K Ru = 8.31447 "2²) = 8.31447 kPa-m³ kmol-K kPa.m³ kJ The mole number of the helium balloon is The mass of the helium balloon is kg. kmol.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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A spherical balloon with a diameter of 9 m is filled with helium at 20°C and 210 kPa. Determine the mole number and the mass of the
helium in the balloon. Take the molar mass of helium to be 4.003 kg/kmol. The universal gas constant is
8.31447
kJ
Ru = 8.31447. mol-K (kPx.m³
kJ
The mole number of the helium balloon is
The mass of the helium balloon is
kPa-m³
kmol-K
kg.
kmol.
Transcribed Image Text:A spherical balloon with a diameter of 9 m is filled with helium at 20°C and 210 kPa. Determine the mole number and the mass of the helium in the balloon. Take the molar mass of helium to be 4.003 kg/kmol. The universal gas constant is 8.31447 kJ Ru = 8.31447. mol-K (kPx.m³ kJ The mole number of the helium balloon is The mass of the helium balloon is kPa-m³ kmol-K kg. kmol.
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