vapor density
- noun
- /ˈveɪpər ˈdɛnʲsɪti/
- Specialized
:
densidad de vapor
- Understanding the vapor density helps scientists predict how gases will behave under different temperature and pressure conditions.
Examples
-
Water has the potential to be a very efficient refrigerant, but because it requires operation in a deep vacuum, its vapor density is quite low.
Academic text (1998) -
The saturated liquid density of CO2 is approximately 70 percent that of R-22, while the saturated vapor density of CO2 is approximately five times that of R-22.
Academic text (1998) -
Vapor density is the weight of a volume of pure vapor or gas relative to the weight of an equal volume of dry air at the same temperature and pressure.
Academic text (1998) -
Vapor densities greater than 1 indicate that the vapor or gas is heavier than air (15).
Academic text (1998) -
One reason chloramines did not develop in the buckets of water may have been that the vapor density of some of the chloramine compounds is significantly heavier than air.
Academic text (1998) -
If chloroform, which has a vapor density of 4.1, is found near the pool water surface unless moved by air turbulence, then it can be expected that organochloramines with high vapor densities behave in a similar fashion.
Academic text (1998) -
If chloroform, which has a vapor density of 4.1, is found near the pool water surface unless moved by air turbulence, then it can be expected that organochloramines with high vapor densities behave in a similar fashion.
Academic text (1998) -
The chemist measured the vapor density of the gas to determine if it was heavier than air.
-
To ensure safety in the laboratory, the technician regularly checks the vapor density of various chemicals.
Synonyms
123
4.1
How much of something is inside a certain amount of space
The amount of material packed into a space, for example in metal
Surface Forms
Morphology
The meaning is directly compositional: 'vapor' (a gas) combined with 'density' (mass per unit volume) yields 'the density of the vapor' which a learner can infer from the parts. The technical detail about comparison to hydrogen is a specialised refinement but does not prevent a B1 learner who knows both words from understanding the basic concept.
Etymology
Vapor density uses a simple image: imagine two same size balloons, one filled with 'hydrogen' and one filled with another gas. The heavier balloon shows higher density, so vapor density tells how heavy a vapor or gas is compared with 'hydrogen'.