Proceedings of the Royal Society of London A Mathematical and Physical Sciences · 1937 · 19 citations · 1 references
Natural SciencesChemistryAtmospheric ThermodynamicsHeat TransferThermodynamicsChemical ThermodynamicsHigh-pressure ThermodynamicsThermal Properties Of MaterialsThermodynamic VariablesAtmospheric Pressure DependenceMaterial EntropyPressure-temperature RelationshipsSpecific Heat CapacitySpecific Heat DeterminationThermochemical PropertiesThermodynamic Analysis
Abstract In previous papers (Michels and Michels 1935; Michels, Michels and Wouters 1935) the results of isotherm measurements on CO2 and a method for interpolation of the pv values at intermediate temperatures and densities have been published. From the data obtained, the specific heat at constant volume Cv, the free energy F, the total energy U, and the entropy S, have been calculated, and these results are given in the present communication. The values of F, U and S at N. T. P. have been taken as zero. The values of Cv, F, S and U at a density of 1 Amagat unit (ρ = 1) have first been calculated for different temperatures. To the values, so obtained, has been added the increase of these quantities by compression. The values of Cv at ρ = 1 have been calculated, using the interpolation formula as given by Shilling and Partington (1928).
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