Thermodynamic Properties of Substances and Ions at 25° C

The thermodyamic properties are arranged by group from the periodic table. Click on the group to access the table for that group.

Hydrogen

For one mole at 298K and 1 atmosphere pressure
Substance (form)
Enthalpy
DfH (kJ)
Gibbs
DfG (kJ)
Entropy
(J/ K
e-(g)
0
0
20.87
H+
1536.3
1517.1
108.83
H+
0
0
0
H(g)
218.0
203.30
114.60
H2(g)
0
0
130.6

Group IA

For one mole at 298K and 1 atmosphere pressure
Substance (form)
Enthalpy
DfH (kJ)
Gibbs
DfG (kJ)
Entropy
(J/ K
Li+(g)
687.163
649.989
132.91
Li+(aq)
-278.46
-293.8
14
Li(g)
161
128
138.67
Li(s)
0
0
29.10
LiF(s)
-616.9
-588.7
35.66
LiCl(s)
-408
-384
59.30
LiBr(s)
-351
-342
74.1
LiI(s)
-270
-270
85.8
Na+(g)
609.839
574.877
147.85
Na+(aq)
-239.66
-261.87
60.2
Na(g)
107.76
77.299
153.61
Na(s)
0
0
51.446
NaF(s)
-575.4
-545.1
51.21
NaCl(s)
-411
-384
72.12
NaBr(s)
-361
-349
86.82
NaI(s)
-288
-285
98.5
NaHCO3(s)
-947.7
-851.9
102
Na2CO3(s)
-1130.8
-1048.1
139
K+(g)
514.197
481.202
154.47
K+(aq)
-251.2
-282.28
103
K(g)
89.2
60.7
160.23
K(s)
0
0
64.672
KF(s)
-568.6
-538.9
66.55
KCl(s)
-436.68
-408.8
82.55
KBr(s)
-394
-380
95.94
KI(s)
-328
-323
106.39
Rb+(g)
495.04
...
...
Rb+(aq)
-246
-282.2
124
Rb(g)
85.81
55.86
169.99
Rb(s)
0
0
69.5
RbF(s)
-549.28
...
...
RbCl(s)
-430.58
...
...
RbBr(s)
-389.2
-378.1
108.3
RbI(s)
-328
-326
118
Cs+(g)
458.5
427.1
167.72
Cs+(aq)
-248
-282
133
Cs(g)
76.7
49.7
175.5
Cs(s)
0
0
85.15
CsF(s)
-554.7
-525.4
88
CsCl(s)
-442.8
-414
101.18
CsBr(s)
-395
-383
121
CsI(s)
-337
-333
130


Most of data from Ebbing, Darrell D., General Chemistry, 3rd Ed., Appendix C, Houghton-Mifflin, 1990.


Thermodynamic potentialsSpecific Heat
 Index

Tables

Reference
Ebbing
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