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the ratio of the density of a gas or vapour to that of hydrogen at the same temperature and pressureSee also relative density
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Words nearby vapour density
vapor tension, vapor trail, vaporware, vapory, vapour, vapour density, vapourer moth, vapour lock, vapour pressure, vapour trail, vaquero
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use vapour density in a sentence
This fact, coupled with the determination of the vapour density of the gas, establishes the molecular formula CO.
For higher temperatures the bulb of the vapour density tube is made of porcelain or platinum, and is heated in a gas furnace.
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.