Is hydrogen more or less dense than air?
1 Answer
Hydrogen is less dense than air.
Explanation:
Hydrogen has a mass of 2 grams/ 22.4 liters of Volume.
Air is a mixture of 79 %
grams/22.4 liters of Volume. ( As well as small percentages of other gases such as Hydrogen, Carbon Dioxide, Helium, Methane, Neon and others)
The average mass of the air is approximate 28.8 grams / 22.4 liters of Volume.
Hydrogen has only about 7% of the mass of atmospheric air. making it much less dense than air. This is what made Hydrogen the choice of gas for the lighter than air ships. That is until one of the Hydrogen filled ships exploded. Now lighter than air ships use Helium with a mass of 4 grams./ 22.4 liters of volume. Twice as dense Hydrogen but still less dense than the atmospheric air and not explosive.
