DOC.
31
179
found.
As
mentioned in
the
introduction,
the
second
half
of the book is
expected to
appear
during
the
next
year.
It will contain the
theory
of
satur-
ated
and superheated
vapors,
sections
on
aerostatics,
aerodynamics,
and
solid
bodies,
as
well
as
the
corresponding
applications,
in
a
presentation
very
similar
to
that in the first half.
Doc.
31
Review
of
A.
FLIEGNER,
"On
the
Thermal Value
of
Chemical
Processes"
("Über
den Wärmewert
chemischer
Vorgänge,"
Naturforschende Gesellschaft
in
Zürich. Vierteljahrsschrift
50
(1905):
201-212)
[Beiblätter
zu
den
Annalen
der
Physik 29
(1905):
1158]
The
author overlooks
the
fact that the
defining
equation
of
entropy
dS
=
dQ/T
holds for reversible
processes
only,
and
as
a
consequence
he
arrives
at
the
result that
one
cannot
speak
of
a
change
of
a
system's
entropy
by a
chemical
process.
[2]
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