Hydrogen gas is 16x lighter than air.
The atomic weight of Hydrogen is 1 Atomic Mass unit, and the atomic weight of oxygen is 16 atomic mass units. 602,000,000,000,000,000,000,000 hydrogen molecules would weigh 1 gram. The same amount of oxygen would weigh 16 grams.
Clarification: The air we breath is actually a mixture of oxygen, nitrogen, and carbon dioxide. But in this example, I treated it as pure oxygen to keep things simple.
hydrogen
100% of hydrogen is lighter than air
Nitrous oxide is slightly heavier than air.
Yes, hydrogen fluoride (HF) is heavier than air because its molecular weight is greater than that of air. This means that HF gas will tend to settle and accumulate at lower levels compared to the lighter components of air.
Helium is typically used to make balloons fly up in the air because it is lighter than air and creates lift. Hydrogen is also lighter than air and can be used, but it is flammable. Carbon dioxide is heavier than air and would cause a balloon to sink.
hydrogen
100% of hydrogen is lighter than air
Just, simply, Lighter than Air Vehicles are lighter than air, so that makes them fly, and Heavier than air vehicles are heavier than air, but they use airfoils on the wings to fly.
Hydrogen is about 14.4 times lighter than air.
Helium is lighter than air
Nitrous oxide is slightly heavier than air.
Yes, hydrogen fluoride (HF) is heavier than air because its molecular weight is greater than that of air. This means that HF gas will tend to settle and accumulate at lower levels compared to the lighter components of air.
Helium is typically used to make balloons fly up in the air because it is lighter than air and creates lift. Hydrogen is also lighter than air and can be used, but it is flammable. Carbon dioxide is heavier than air and would cause a balloon to sink.
One is lighter and the other one is heavier. :D
Some are heavier, but some are lighter. For example, methane rises but propane sinks.
No, it is heavier than air and will sink to the floor.
they are heavier than air hence why they don't fly unless in motion.