vapour density

British  

noun

1. the ratio of the density of a gas or vapour to that of hydrogen at the same temperature and pressure See also relative density

---

Example Sentences

It melts at below red heat to a brown mass, and its vapour density at both red and white heat corresponds to the formula Cu2Cl2.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" by Various

Sulphur at 860� C. is a gas with a vapour density of 2.2, while at 500� C. its vapour density rises to 6.6.

From The Mechanism of Life by Leduc, Stéphane

This fact, coupled with the determination of the vapour density of the gas, establishes the molecular formula CO.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" by Various