Vapor Density 01


Vapor Density 01 : (Chem; Phys) The ratio of the weight of a given volume of gas or vapor to the weight of an equal volume of a standard gas, usually hydrogen or air, at the same temperature and pressure. Note: A gas or vapor heavier than the standard has a vapor density greater than (1) Gasoline vapor, for example, has a vapor density of approx (3)5 with respect to air
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