Open AccessSome physical constants of ammonia: A study of the effect of change of temperature and pressure on an easily condensible gas
Publication year - 1906
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1906.0055
Subject(s) - ammonia , thermodynamics , density of air , atmospheric pressure , compressibility , materials science , atmosphere (unit) , work (physics) , chemistry , meteorology , physics , organic chemistry
This work was originally undertaken in order to obtain an accurate value for the density of ammonia, the only determination that appeared reliable being that of Le Duc. While the experiments were in progress, the result of a determination by Guye was published; the number differed from that of Le Due and made a fresh determination still more desirable. We have now determined the density at temperatures ranging from -20° to +100°C., also the density at half an atmosphere pressure at 0°C. From these data the coefficient of expansion and the compressibility can be calculated. In addition to this, measurements of the pressure coefficient, of vapour-pressure, and of the density of ammonia in the presence of air, have been made.