E.(3. KERR,E. B. RIFKIN,If. L.
282
[CONTRIBUTION FROM
THE
CRYOGENIC LABORATORY AND
THE
JOHNSTON AND
J. T. CLARKE
iyo1. 7 3
DEPARTMENT O F CHEMISTRY, THEOHIO STATE UNIVERSITY]
Condensed Gas Calorimetry. 11. Heat Capacity of Ortho-deuterium between 13.1 and 23.6'K., Melting and Boiling Points, Heats of Fusion and Vaporization. Vapor Pressures of Liquid Ortho-deuterium1 BY
EUGhNE
e. KERR,ELIS B. I. !I t 0.728 21).3ii ,955 30 , ii8 21.22 21 .:N
22. 0 i 22.17 22.73
,
ii90
,919 ,077 .656 ,882 ,636
Cr,
c al./mole/deg
1.344 1.367 1. A0:i 1.631
1.831 1.860 2.076 2.175 2.312 2.496 2.5'30