Question

A balloon containing helium gas can lift a maximum load of 500 kg including the balloon. Calculate the volume of helium gas in the balloon, Density of air is 1.29 kg/m³and density of helium gas is 0.18 kg/m³​

Answer 1

Answer:

The answer is 450•45 because you subtract both densities and use the formula:

mass\volume

then substitute

density=1•29-0•18=1•11

1•11=500/volume

Cross multiply

1•11vol=500

divide both sides by 1•11

volume=500/1•11

volume=450•45m^3