When the valve is opened, the pressure will fall to an intermediate value, P
2
,
and the mass balance equation becomes
P
2
(
V
CELL
−
V
SAMP
+
V
EXP
)
=
n
c
RT
a
+
n
E
RT
a
(3)
Substituting from equations (1) and (2) into (3):
P
2
(
V
CELL
−
V
SAMP
+
V
EXP
)
=
P
1
(
V
CELL
−
V
SAMP
)
+
P
a
V
EXP
(4)
or
(
P
2
−
P
1
)
(
V
CELL
−
V
SAMP
)
=
(
P
a
−
P
2
)
V
EXP
(5)
then
V
CELL
−
V
SAMP
=
P
a
−
P
2
P
2
−
P
1
V
EXP
(6)
Adding and subtracting P
a
in the denominator and rearranging gives
−
V
SAMP
=
−
V
CELL
+
(
P
a
−
P
2
)
V
EXP
(
P
2
−
P
a
)
−
(
P
1
−
P
a
)
(7)
Dividing by (P
a
- P
2
) in both the numerator and denominator
V
SAMP
=
V
CELL
−
V
EXP
−
1
−
P
1
−
P
a
P
a
−
P
2
(8)
or
V
SAMP
=
V
CELL
−
V
EXP
P
1
−
P
a
P
2
−
P
a
−
1
(9)
APPENDIX B
AccuPyc 1330
B-2
September 1996
Summary of Contents for AccuPyc 1330
Page 1: ...AccuPyc 1330 Pycnometer Operator s Manual V3 03 Part No 133 42808 01 January 2005 ...
Page 6: ...CHAPTER 1 GENERAL INFORMATION Organization of the Manual Conventions Equipment Description ...
Page 83: ...CHAPTER 6 ORDERING INFORMATION ...
Page 86: ...APPENDIX A CHANGING THE ANALYSIS MODULE ...
Page 92: ...APPENDIX B ANALYSIS THEORY ...
Page 96: ...APPENDIX C CALIBRATION THEORY ...
Page 99: ...APPENDIX D FORMAT OF TRANSMITTED DATA ...
Page 108: ...APPENDIX E PRINTER CHARACTER SET ...
Page 111: ...INDEX ...
