188
DOC. 4
KINETIC THEORY LECTURE NOTES
[
We
set;
mol.
weight;
Curie for
small; Thus; Molec[ular]
field
(Weiss);
derivable
as
funct
of
the
temperature
]
.
MH
cos
9
Setzen
wir
=
x
©-
NM
Mol.
gew
=
h
+a
r
+fl
1
H
-
e~xdx
X
-a
J
-a
-X dx
(ae
" + ae")
-
(ea
-
e
°)
e"
-
e
"
0
J
cosh
a
Hi sinh
a
w/cosh
a
l)
\
sinh
a
a
J
Langevin.[76]
Curie[75]
für/k1[eine]
a
1
+ a(\
a)
1
(1
+
a)
-
(1
-
a)
a
I
_
1
M
/
=
i
A#
Z~
3©
H
3
RT
I cosh
a
1
NMH
Also
=
a
=
J0
sinh
a a
RT
Molek[ular]
Feld
(Weiss)[77]
Hm =
NI
MHm_MN
MN I
0
0
" ©
°T0
MN
r
I
m
I
als
Funkt
der
T0
Temp[eratur]
ableitbar