Abstract
In previous papers (Michels and Michels 1935; Michels, Michels and Wouters 1935) the results of isotherm measurements on CO
2
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
C
v
, 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
C
v
,
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
C
v
at
ρ
= 1 have been calculated, using the interpolation formula as given by Shilling and Partington (1928).
Reference10 articles.
1. Z;Eucken A.;Chem.,1928
2. Keesom W. H. 1908 Dissertation Leiden p. 83. Compare also: - Van der Waals-Kohnstamm " Lehrbuch der Thermostatik " 3 100.
3. Proc. Roy;Michels A.;Soc. A,1937
4. Proc. Roy;Michels A.;Soc. A,1935
5. Proc. Roy;Michels A.;Soc. A,1935
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