1. Consider this item as ideal gas: A rigid tank containing 3 lb of gaseous mixture of nitrogen, helium and carbon dioxide, each 33.33 % by volume at 40 psia, and 150°F receives 1 lb more of nitrogen with the temperature remaining at 150°F. For the resulting 4lb, determine (a) the gravimetric and volume analyses, (b) the pressure and (c) the molecular weight. For the initial mixture, determine (d) Cp, (e) Cv, and, (f) R
1. Consider this item as ideal gas: A rigid tank containing 3 lb of gaseous mixture of nitrogen, helium and carbon dioxide, each 33.33 % by volume at 40 psia, and 150°F receives 1 lb more of nitrogen with the temperature remaining at 150°F. For the resulting 4lb, determine (a) the gravimetric and volume analyses, (b) the pressure and (c) the molecular weight. For the initial mixture, determine (d) Cp, (e) Cv, and, (f) R
1. Consider this item as ideal gas: A rigid tank containing 3 lb of gaseous mixture of nitrogen, helium and carbon dioxide, each 33.33 % by volume at 40 psia, and 150°F receives 1 lb more of nitrogen with the temperature remaining at 150°F. For the resulting 4lb, determine (a) the gravimetric and volume analyses, (b) the pressure and (c) the molecular weight. For the initial mixture, determine (d) Cp, (e) Cv, and, (f) R
Please answer the question number 1. Thermodynamics need cancellation
Transcribed Image Text:E
3
1.0
Answers: (a).
(c)_
(e)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
1. Consider this item as ideal gas: A rigid tank
containing 3 lb of gaseous mixture of nitrogen, helium
and carbon dioxide, each 33.33 % by volume at 40 psia,
and 150°F receives 1 lb more of nitrogen with the temperature
remaining at 150°F. For the resulting 4lb, determine (a) the
gravimetric and volume analyses, (b) the pressure and (c) the
molecular weight.
0.2
For the initial mixture, determine (d) Cp, (e) Cv,
and, (f) R
0.1
0
0.5
Gas
Nitrogen
Helium
Carbon
Dioxide
Tg-1.00
29
1.0 1.5
N₂
Formula
He
8
T-1.10
CO₂
2.0
TR=1.20
2.5
28
4
44
A
X
3.0
(f)
X
_(b)_
(d)_
T=1.50
T-2.00
Tig
MW
T-1.30
x
X
4.0
3.5
Reduced pressure P
X
4.5
Density
(kg/m3)
1.1648
0.1663
1.8417
5.0 5.5
Legend:
x Methane
o Ethylene
■ Iso-pentane
n-Heptane
▲ Ethane
A Nitrogen
Carbon dioxide
o Propane
On-Butane
• Water
Average curve based on data on
hydrocarbons
R
(Gas
constant)
kJ/(kg.K)
0.297
2.078
0.189
Show your solutions in separate pages
2. Consider this item as REAL gases:
Two hundred and fifty pounds of a mixtur
17.47% n-butane, and 75.9%-pentane is co
pipe still in one hour. At the outlet,
pressure are 433 F and 600 psia. Wha
rate in CFS at the outlet conditions? Ab
Answer:
1 of 1
6.0 6.5
The physical properties of the gas
Cp
1.034
5.234
kJ/(kg.K)
0.858
7.0,
Tc
Pe
MW
Propane
369.9 K
665.8 R
42.0 atm
A drum 6 inches in diam
contained acetylene at 250 psia a
acetylene was used the pressu
temperature was 70°F (a) what p
used, and (b) what volume would
at 14.7 psia and 60°F.
R(acetylene) = 59.35 ft-lbf/lbm
No. 3. Consider this item a
0.733
3.153
0.66
44
Cv
Answer: a.
kJ/(kg.K)
b. V=
Cp/Cv=Y
B
1.41
1.66
42
76
37
1.3
Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.
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