DOC.
4
KINETIC THEORY LECTURE NOTES
183
-
h^W.
dWp
=
const
e
9
dqx
.....dqn
Mean
value
of
one
of the
terms
(e.g.,
A1q12)
M
jconstAflle
dq1--dqn
jAxqxe ~*'yA1
dqx
Jconst
edqx
-dqn
=
e
Je
JÄ^dq1
Jxze-dx
q
Jedx
^
[p. 35]
e
Thus, mean
value of the kinetic
energy
associated
with this
configuration
m~.
Is
independent
of the
specific configuration.
Mean kinetic
energy
of the
system
depends
in
a simple
fashion
on
the number of
molecules.
The
simplest case
for the
representation
of
a
solid
body
E
=
X^vPv
+\Bvq
n
In
this
case
E
=
"6
.
Magnetic Molecule
in
a Magnetic
Field.
(Langevin,
Weiss)[68]
We think of
a
molecule that
is
rigidly
connected
with
an elementary
magnet.
For the
sake
of
simplicity, we
will
consider
perchance
the
molecule discussed above
(diatomic)
dW
=
konst
e~am(mim2+''2+t2)+(mR2l2Hsin2
»»2+'2)]l+(i/«)«»cosSdx--d(od£--do^\[69]
This
formula
is
valid if
no
magnetic
field
is present
If
magnetic
field
present, additional
term.