A hydrogen balloon rises in air because :
Density of hydrogen > density of air.
Density of hydrogen < density of air.
Density of hydrogen = density of air.
None of the above
Hydrogen balloon rises in air because of the density of hydrogen < density of air.
When the density of air is compared with that of hydrogen chloride, the density of hydrogen chloride is ________ to air.
What is the up thrust experienced by a balloon of volume 120m3 filled with hydrogen. The density of air = 1.140 kgm3 and density of hydrogen = 0.081kgm3 at room temperature. What is the maximum weight this balloon can lift?