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The Principles of Thermodynamics
book

The Principles of Thermodynamics

by N.D. Hari Dass
October 2013
Intermediate to advanced content levelIntermediate to advanced
352 pages
13h 56m
English
CRC Press
Content preview from The Principles of Thermodynamics
Structure of Thermodynamic Theories 129
n
i
. Then the entropy of the i-th component is simply given by eqn.(6.9) with the
possibility that the constants T
0
,V
0
can be different for the different components. An
equivalent way of handling this is to add a piece n
i
s
i
0
to each S
(i)
, and dropping the
nR piece from the earlier expression. Also, the specic heats will be different for
each component. Consequently
S =
i
n
i
C
i
Rln
T
T
0
+
i
n
i
Rln
V
n
i
V
0
+
i
n
i
s
i
0
(6.32)
This can be rewritten as
S =
i
n
i
C
i
Rln
T
T
0
+
i
n
i
Rln
V
NV
0
+
i
n
i
s
i
0
R
i
n
i
ln
n
i
N
(6.33)
Note that this total entropy is extensive, as each individual entropy in the sum is
extensive. The last term is the famous entropy ...
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Publisher Resources

ISBN: 9781466512085