Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN: 9781259696527
Author: J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher: McGraw-Hill Education
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Transcribed Image Text:Using data from Table A-25, calculate the equilibrium constant expressed as log₁0K, for the water-gas shift reaction
CO + H₂O (g) ↔ CO₂ + H₂
at 298 K and then at 1000K.
Also, determine the equilibrium constant at 298 K and then at 1000K using Table A-27.
Table A-25:
T(K)
298
1000
log10K
Transcribed Image Text:TABLE A-25 Thermochemical Properties of Selected Substances at 298K and 1 atm
Substance
Carbon
Hydrogen
Nitrogen
Oxygen
Carbon monoxide
Carbon dioxide
Water
Water
Hydrogen peroxide
Ammonia
Oxygen
Hydrogen
Nitrogen
Hydroxyl
Methane
Acetylene
Ethylene
Ethane
Propylene
Propane
Butane
Pentane
Octane
Octane
Benzene
Methanol
Methanol
Ethanol
Ethanol
Formula
C(s)
H₂(g)
N₂(g)
O₂(g)
CO(g)
CO₂(g)
H₂O(g)
H₂O(l)
H₂O₂(g)
NH,(g)
O(g)
H(g)
N(g)
OH(g)
CH₂(g)
C₂H₂(g)
C₂H₂(g)
C₂Hs(g)
C3Hs(g)
C₂H₂(g)
C₂H₂(g)
C3H₁2(g)
CgH18(g)
C8H18(1)
CH(g)
CH₂OH(g)
CH₂OH(1)
C₂H₂OH(g)
C₂H₂OH(1)
Molar Mass,
M (kg/kmol)
12.01
2.016
28.01
32.00
28.01
44.01
18.02
18.02
34.02
17.03
16.00
1.008
14.01
17.01
16.04
26.04
28.05
30.07
42.08
44.09
58.12
72.15
114.22
114.22
78.11
32.04
32.04
46.07
46.07
Enthalpy of
Formation, h
(kJ/kmol)
0
0
0
0
-110,530
-393,520
-241,820
-285,830
-136,310
-46,190
249,170
218,000
472,680
39,460
-74,850
226,730
52,280
-84,680
20,410
-103,850
-126,150
-146,440
-208,450
-249,910
82,930
-200,890
-238,810
-235,310
-277,690
Gibbs Function
of Formation,
gi (kJ/kmol)
0000
0
-137,150
-394,380
-228,590
-237,180
-105,600
-16,590
231,770
203,290
455,510
34,280
-50,790
209,170
68,120
-32,890
62,720
-23,490
-15,710
-8,200
17,320
6,610
129,660
-162,140
-166,290
-168,570
-174,890
Absolute
Entropy, sº
(kJ/kmol. K)
5.74
130.57
191.50
205.03
197.54
213.69
188.72
69.95
232.63
192.33
160.95
114.61
153.19
183.75
186.16
200.85
219.83
229.49
266.94
269.91
310.03
348.40
463.67
360.79
269.20
239.70
126.80
282.59
160.70
Heating Values
Higher, Lower,
HHV
LHV
(kJ/kg)
(kJ/kg)
32,770
141,780
55,510
49,910
50,300
51,870
48,920
50,350
49,500
49,010
48,260
47,900
42,270
23,850
22,670
30,590
29,670
32,770
119,950
|||||||||||||
50,020
48,220
47,160
47,480
45,780
46,360
45,720
45,350
44,790
44,430
40,580
21,110
19,920
27,720
26,800
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