D O C . 3 8 5 Q U A N T U M T H E O R Y O F I D E A L G A S I I 3 8 3
convergent up to λ = 1 and convenient to compute. We now introduce the terms
Then the relations
(19c)
(22c)
apply for the unsaturated ideal gas, i.e., between y = 0 and y = 2.615, where we set
(18c)
From (19b) one obtains for the specific heat per mole at a constant volume :
For an easier overview, we offer a graph of the functions F(y) and G(y)
If one takes into account the approximately linear course of F(y), then the good ap-
proximation equation for p results
(22d)
December 1924.
z
y
-- F y). ( =
[p. 14]
E
n
---
3
2
--κTF - y) ( =
p RTηF(y); =
y
h3
2πmκT)3 ( /2
----------------------------- ----
n
V
h3Nη
2πMRT)3 ( /2
------------------------------ -. = =
cν
cν
3
2
--R - F y) (
3
2
--yF′(y)·
- –
© ¹
§
3
2
--RG - y). ( = =
p RTη 1 0.186------------------------------
h3N4η
2πMRT)3 ( /2
- – . =