vapour density

noun

1. See relative density
   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

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

From Project Gutenberg

For higher temperatures the bulb of the vapour density tube is made of porcelain or platinum, and is heated in a gas furnace.

From Project Gutenberg

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 Project Gutenberg