Note on the relation of volume, pressure and temperature in case of liquids

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Abstract
ART. LII.-Note on the Relation of Volume, Pre88ure and Temperature in ca8e of LiquidB;* by CARL BARUS.MANY experiments made with alcohol, ether, para-toluidine, diphenylamine, paraffine, thymol, and le8s completely with naphthaline, vanilline, azo-benzol, a-naphtol, monobrom camphor, benzoic acid, caprinic acid, palmitic acid, and monochlor• acetic acid, show that if temperature and pressure vary linearly at a mean rate of about '11 0 C. per atmosphere there will be no change of volume.My temperatures lie between 30 0 and 300°, and the pressure between 20 atm. and 500 atm..By judicious extrapolation (enclosure of the experimental data, volume, pressure, temperature, between two mathematical functions, one of which is necessarily above and the other below the observed values; whet'eas both of the said functions fall within the limits of error, within the interval of observation), the probable contours can be computed to 1000 atm., with resnlts accentuating the above law.The linear relation was predicted from theoretical considerations by Dupre ( 1869) and by Levy (1884)-considerations soon proved to be inadequate by Massieu, H. F. Weber, Boltzmann and Olansius.Ramsay and Y ollng (188'7') established the relation in question experimentally for vapors, but not, I think, very fully for liquids decidedly below their critical points.Reasoning from these data Fitzgerald (1887) investigated the consequences of the law, viz: (1) specific heat under constant volume is a temperature function only; (2) internal energy and entropy can be expressed as a sum of two terms one of which is a volume function only and the other a temperature function only.Thus Ramsay, Young and Fitzgerald arrive substantially at the same position from which Dupre and Levy originally started.
Reference Key
openalex_W2320179229 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Carl Barus
Journal american journal of science
Year 1889
DOI
10.2475/ajs.s3-38.227.407
URL
https://doi.org/10.2475/ajs.s3-38.227.407
Keywords Keywords not found

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