Is hydrogen fluoride heavier or lighter than air?
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I have a question, is hydrogen fluoride heavier or lighter than air? According to the data found, the molecular weight of this substance is 20.01, but the specific gravity of the gas is 1.27. What is the reason for this? Should toxic gas detectors be set to be heavier than air or lighter than air?
Didn't you give the specific gravity of steam? It is heavier than air.
:P However, Avogadro's law only applies to permanent gases
But according to the molecular weight, it should be lighter than air. How to deal with it?
I checked some manuals and it was indeed given 1.27. The reason is unknown.
Maybe it has something to do with polarity. This type of gas is too polar.
Hydrogen fluoride gas is heavier than air, so there is no problem.
The setting is heavier than air. From the data you provided, we can see that the density of hydrogen fluoride is approximately equal to the density of water. Under the same pressure and temperature conditions, the density of water is definitely greater than the density of air.
It is slightly lighter than air under standard conditions. Under normal temperature and pressure, because the polarity exists as a mixture of two molecules and three molecules, the current general practice is to install detectors within one meter of the upper part and 0.3-0.6 on the ground.