Definition
Vapour density is the density of a vapour in relation to that of hydrogen.Vapour density is important to predict whether gases will sink (into basements, wells, sewers etc). or rise (into attics and upper stories). So it is usually more useful if we compare to the density of the air.
Formula
ρ = m / V
- ρ: Density
- m: mass
- V: Volume
Density vs Specific Weight vs Specific Gravity
I would like to point out that there are conceptual differences between density, specific weight and specific gravity. Follow the link if you want to learn more about these differences.With that said, this page will provide you the vapour density in kg/m³ (SI unit), g/cm³, g/ml, kg/l, lb/ft³.
Density of Vapour
For the sake of simplicity I'll show absolute examples from teknopoli:
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| Click to enlarge |
My Density Infographic
Put the vapour density in perspective!
How about an incentive to share this post? (You will help other colleagues find this blog)
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