Condensed Gas Calorimetry. II. Heat Capacity of Ortho-deuterium

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