which noble gas in used for filling balloons in meterlogical observations and why?URGENT PLS
Answers
Answered by
1
helium.
the only gas lighter than helium is hydrogen, which has some flammability issues that make it more difficult to handle safely than helium.
Also, in practice, hydrogen is not significantly "lighter" than helium. While the molecular mass (and thus, per theideal gas law, the density) of hydrogen gas is about half that of helium, what determines the buoyancy of a balloon is the difference between the density of the gas inside the balloon and the air outside.
The density of air at STP is about ρair = 1.2754 kg/m3, while the densities ofhydrogen and helium gas are ρH2 = 0.08988 kg/m3 and ρHe = 0.1786 kg/m3
the only gas lighter than helium is hydrogen, which has some flammability issues that make it more difficult to handle safely than helium.
Also, in practice, hydrogen is not significantly "lighter" than helium. While the molecular mass (and thus, per theideal gas law, the density) of hydrogen gas is about half that of helium, what determines the buoyancy of a balloon is the difference between the density of the gas inside the balloon and the air outside.
The density of air at STP is about ρair = 1.2754 kg/m3, while the densities ofhydrogen and helium gas are ρH2 = 0.08988 kg/m3 and ρHe = 0.1786 kg/m3
Similar questions