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.

Group IB

For one mole at 298K and 1 atmosphere pressure
Substance (form)
Enthalpy
DfH (kJ)
Gibbs
DfG (kJ)
Entropy
(J/ K
Cu+(aq)
51.9
50.2
-26
Cu2+(aq)
64.39
64.98
-98.7
Cu(g)
341.1
301.4
166.29
Cu(s)
0
0
33.1
Ag+(aq)
105.9
77.111
73.93
Ag(g)
289.2
250.4
172.892
Ag(s)
0
0
42.702
AgF(s)
-203
-185
84
AgCl(s)
-127.03
-109.72
96.11
AgBr(s)
-99.50
-99.939
107.1
AgI(s, II)
-62.38
-66.32
114
Ag2S(s)
-31.8
-40.3
146

Group IIB

For one mole at 298K and 1 atmosphere pressure
Substance (form)
Enthalpy
DfH (kJ)
Gibbs
DfG (kJ)
Entropy
(J/ K
Zn2+(aq)
-152.4
-147.21
-106.5
Zn(g)
130.5
94.93
160.9
Zn(s)
0
0
41.6
ZnO(s)
-348.0
-318.2
43.9
ZnO(s,zinc
blende)
-203
-198
57.7
Cd2+(aq)
-72.38
-77.74
-61.1
Cd(g)
112.8
78.20
167.64
Cd(s)
0
0
51.5
CdS(s)
-144
-141
71
Hg2+(aq)
...
164.8
...
Hg2+(aq)
...
153.9
...
Hg(g)
61.30
31.8
174.87
Hg(l)
0
0
76.027
HgCl2(s)
-230
-184
144
Hg2Cl2(s)
-264.9
-210.66
196
HgO(s)
-90.79
-58.50
70.27


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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