TABLE E.1
Forms.:
Heat Capacity Equations for Organic and Inorganic Compounds (at Low Pressures)*
(1) C; =a + b(7) +c(7)2+ d(;
(2) C = a+ b(T) + c(7)-2.
Units of C, are J/(g mol)(K or °C).
To convert to cal/(g mol)(K or °C) = Btu/(lb mol)(°R or °F), multiply by 0.2390.
Note: b 10 means the vaue of b is to be multiplied by 10-2, e.g., 20.10x 10-2 for acetone.
71.96
Compound
Formula
Acetone
Acetylene
CH,COCH,
C,H,
Air
Ammonia
Ammonium sulfate
NH,
(NH),SO4
Benzene
CH,
Isobutane
CH0
n-Butane
Isobutene
Calcium carbide
Calcium carbonate
CHị0
Calcium hydroxide
Calcium oxide
Carbon
Carbon dioxide
Carbon monoxide
Carbon tetrachloride
Chlorine
Copper
C,H,
CaC,
CaCO,
Ca(OH),
CaO
C
Mol.
Wt.
132.15
State
12.01
Form
1
1
T
°C
°C
°C
1
K
g
1
°C
C
1
K
1
K
1
°C
1
°C
78.11
58.12
58.12
56.10
64.10
100.09
74.10
56.08
1
1
°C
°C
a
71.96
42.43
28.94
28.09
35.15
215.9
-7.27329
74.06
89,46
92.30
82.88
68.62
82.34
C
2
K
C
2
K
C
1
K
89.5
C
2
K
ci
2
0.4799
0.4421
-164.82
-25.20
-18.91
-15.47
-17.27
2.03
-4.52 x 1010
1.095
4.233
0.4110
0.01095
CO
28.01
1
°C
28.95
12.285
İGraphite. Rhombic. ŠMoinoclinic.
77.054
32.95
30.13
27.88
25.64
0.3191
11.18
36.11
63.54
-12.78
-5.033
K
°C
70.91
20.10
6.053
0.4147
0.1965
2.954
41.84
1
Clh
Cu
C•105
-8.66 x 1010
-12.87 x 1010
44.01
CCI,
b 102
4.975
CO,
153.84
Temp.
Range
58.08
26.04
29.0
17.03
20.1×10-2
1
1
K
g
1
°C
C
1
K
33.60
22.76
1.19
1.367
0.06117
d.
109
34.76
18.20
0-1200
0-1200
-1.965
-1.965
-6.686
-1500
1,897.9
77.57
49.87
34.98
50.50
-4.891 >x 1010
-2.887
0.3548
-318.26
-1.607
(in T)
7.464
-2.220
3,425.2
6.473
273-1800
0-1200
275-328
279-350
0-1200
0-1200
0-1200
0-1200
298-720
273-1033
276-373
10273-1173
273-1373
0-1500
0-1500
273-343
0-1200
273-1357
Find
E-
Sensible
DH^
Heat
from
(40%-757)
+ OH
Toluene
TABLE E.1
propane
(cont.)
Temp.
Compound
Formula
Cumene
CGH2
(Isopropyl benzene)
Cyclohexane
CHi2
Cyclopentane
CçHo
Ethane
C,H,
Ethyl alcohol
CH,0
Mol.
Wt.
State
120.19
84.16
70.13
30.07
46.07
Form
1
1
1
1
1
1
1
Ethylene
Ferric oxide
Formaldehyde
C,H,
Helium
He
n-Hexane
CH)4
Fe,O3
CH,0
28.05
159.70
30.03
4.00
86.17
Hydrogen
Hydrogen bromide
Hydrogen chloride
Hydrogen cyanide
Hydrogen sulfide
Magnesium chloride
Magnesium oxide
Methane
CH,
2.016
80.92
36.47
27.03
34.08
95.23
40.32
16.04
Methyl alcohol
CH,OH
32.04
H,
HBr
HCI
HCN
H,S
MgCl,
MgO
Methyl cyclohexane C,H4
Methyl cyclopentane CoHi2
Nitric acid
HNO3
98.18
84.16
63.02
1
2
1
°C
139.2
°C
°C
°C
94.140
73.39
49.37
K
-325.137
°C
°C
K
°C
1
1
b- 102
T
K
°C
°C
°C
°C
1.34
40.75
103.4
34.28
20.8
31.421
137.44
28.
29.10
29.13
35.3
33.51
1
1
1
K
2
K
°C
K
1
72.4
45.44
34.31
19.87
C• 105
53.76
-39.79
49.62
39.28
-31.90
-25.54
-5.816
13.92
0.041379
15.72
11.47
6.711
4.268
-1,403.1
-8.749
-6.891
-17.72 x 1010
0.0000
d . 109
Range
(in T)
120.5
0-1200
80.63
68.66
7.280
1.7035 x 104
19.83
17.66
-8.694
0-1200
0-1200
0-1200
250400
0-1200
0-1200
273-1097
0-1200
All
0.97606
40.85
0.00765
-0.0227
-0.1341
2.908
1.547
-235.37
-23.92
0.3288
0.9887
0.9715
3,092.7
57.66
-0.8698
-4.858
-4.335
1.092
0.3012
-3.292
1.58
0.5008
5.469
5.021
0.03358
K
-259.25
°C
°C
°C
°C
42.93
3.301
121.3
98.83
110.0
56.53
45.857
273-991
273-2073
-8.732 x 1010
0.3661
1.268
-1.1639
-1.87
-37.72
-30.44
273 400
0-1200
0-1500
0-1200
0-1200
0-1200
0-1500
-11.00
-11.00
1.4052 x 104
-8.03
100.8
83.81.
0-1200
273-1500
273-400
0-700
0-1200
0-1200
25
Nitric oxide
Nitrogen
Nitrogen dioxide
Nitrogen tetraoxide
Nitrous oxide
Oxygen
n-Pentane
NO
NNO,
N,O4
N,O
CH2
30.01
28.02
46.01
92.02
44.02
32.00
72.15
1
C,Hg
C,H,
Na,CO,
Na,CO3
44.09
42.08
105.99
286.15
1
°C
1
°C
°C
°C
g
8
1
8
Propane
Propylene
Sodium carbonate
Sodium carbonate
°C
°C
1
1
1
K
°C
°C
°C
29.50
29.00
36.07
75.7
37.66
29.10
33.24
114.8
68.032
59.580
0.8188
0.2199
3.97
12.5
4.151
1.158
192.41
34.09
2.59
17.71
-0.2925
0.5723
0.3652
-2.871
-2.88
7.87
-11.3
-2.694
-0.6076
10.57
-236.87
-18.99
-13.11
-10.17
1.311
17,944
42.26
31.71
24.60
0-3500
0-1500
0-1200
0-300
0-1200
0-1500
270-350
0-1200
0-1200
0-1200
288-371
c
1
K
121
C
1
K
535.6
c+
1
K
15.2
2.68
1
K
18.5
1.84
°C
°C
°C
139.1
298
-10H,0
Sulfur
Sulfuric acid
Sulfur dioxide
Sulfur trioxide
Toluene
Water
S
H,SO4
SO,
SO3
C,H,
H,0
32.07
98.08
64.07
80.07
92.13
1
1
8
1
g
48.50
1
K
1.8083
1
°C
94.18
18.2964
33.46
K
18.016
1
tGraphite. Rhombic. ŠMoinoclinic.
38.91
°C
15.59
3.904
9.188
81.222
38.00
47.212
0.6880
273-368
368-392
10-45
-3.104
-8.540
-151.27
-27.86
-133.88
0.7604
8.606
32.40
1,630
80.33
1,314.2
-3.593
0-1500
0-1000
270-370
0-1200
273-373
0-1500