Aspherical balloon is made from a material whose mass is 3.30 kg. the thickness of the material is negligible compared to the 1.25 m radius of the balloon. the balloon is filled with helium (he) at a temperature of 345 k and just floats in air, neither rising nor falling. the density of the surrounding air is 1.19 kg/m³ and the molar mass of helium is 4.0026×10-3 kg/mol. find the absolute pressure of the helium gas.

563712.04903 Pa

Explanation:

m = Mass of material = 3.3 kg

r = Radius of sphere = 1.25 m

v = Volume of balloon =

M = Molar mass of helium =

= Density of surrounding air =

R = Gas constant = 8.314 J/mol K

T = Temperature = 345 K

Weight of balloon + Weight of helium = Weight of air displaced

Mass of helium is 6.4356 kg

Moles of helium

Ideal gas law

The absolute pressure of the Helium gas is 563712.04903 Pa

the answer to this question is 60 n