<s>
Schreinemaker	B-Application
's	I-Application
Analysis	I-Application
is	O
the	O
use	O
of	O
Schreinemaker	O
's	O
Rules	O
to	O
create	O
a	O
phase	B-Application
diagram	I-Application
.	O
</s>
<s>
After	O
applying	O
Schreinemaker	O
's	O
Rules	O
and	O
creating	O
a	O
phase	B-Application
diagram	I-Application
,	O
the	O
resulting	O
geometric	O
figure	O
will	O
be	O
thermodynamically	O
accurate	O
,	O
although	O
the	O
axes	O
will	O
be	O
undetermined	O
.	O
</s>
<s>
An	O
invariant	O
point	O
is	O
defined	O
as	O
a	O
representation	O
of	O
an	O
invariant	O
system	O
(	O
0	O
degrees	O
of	O
freedom	O
by	O
Gibbs	O
 '	O
phase	O
rule	O
)	O
by	O
a	O
point	O
on	O
a	O
phase	B-Application
diagram	I-Application
.	O
</s>
<s>
These	O
rules	O
can	O
be	O
used	O
in	O
the	O
creation	O
of	O
an	O
accurate	O
phase	B-Application
diagram	I-Application
where	O
both	O
axes	O
are	O
intensive	O
thermodynamic	O
variables	O
.	O
</s>
<s>
There	O
are	O
many	O
correct	O
collections	O
of	O
"	O
Schreinemaker	O
's	O
Rules	O
"	O
and	O
the	O
choice	O
to	O
use	O
a	O
given	O
set	O
of	O
rules	O
depends	O
on	O
the	O
nature	O
of	O
the	O
phase	B-Application
diagrams	I-Application
being	O
created	O
.	O
</s>
<s>
This	O
rule	O
is	O
geometrically	O
sound	O
in	O
the	O
construction	O
of	O
phase	B-Application
diagrams	I-Application
since	O
for	O
every	O
metastable	O
reaction	O
,	O
there	O
must	O
be	O
a	O
phase	O
that	O
is	O
relatively	O
stable	O
.	O
</s>
