| Standard Thermodynamic Data Values at 298 K (25°C) | |||
|
Substance or Ion |
|
|
S° (J/mol · K) |
|
Al (s) |
0 |
0 |
28.3 |
|
Al+3 (aq) |
-524.7 |
-481.2 |
-313 |
|
AlCl3(s) |
-704.2 |
-628.9 |
110.7 |
|
Al2O3(s) |
-1676 |
-1582 |
50.94 |
|
Ba(s) |
0 |
0 |
62.5 |
|
Ba+2(aq) |
-538.36 |
-560.7 |
13 |
|
BaCl2(s) |
-806.06 |
-810.9 |
126 |
|
BaCO3(s) |
-1219 |
-1139 |
112 |
|
BaO(s) |
-548.1 |
-520.4 |
72.07 |
|
BaSO4(s) |
-1465 |
-1353 |
132 |
|
Br2(l) |
0 |
0 |
152.23 |
|
Br2(g) |
30.91 |
3.13 |
245.38 |
|
Br-1(aq) |
-120.9 |
-102.82 |
80.71 |
|
HBr(g) |
-36 |
-53.5 |
198.59 |
|
Ca(s) |
0 |
0 |
41.6 |
|
Ca+2(aq) |
-542.96 |
-553.04 |
-55.2 |
|
CaF2(s) |
-1215 |
-1162 |
68.87 |
|
CaCl2(s) |
-795.0 |
-750.2 |
114 |
|
CaCO3(s) |
-1206.9 |
-1128.8 |
92.9 |
|
CaO(s) |
-635.1 |
-603.5 |
38.2 |
|
Ca(OH)2(s) |
-986.09 |
-898.56 |
83.39 |
|
Ca3(PO4)2(s) |
-4138 |
-3899 |
263 |
|
CaSO4(s) |
-1432.7 |
-1320.3 |
107 |
|
C(graphite) |
0 |
0 |
5.686 |
|
C(diamond) |
1.896 |
2.866 |
2.439 |
|
C(g) |
715.0 |
669.6 |
158.0 |
|
CO(g) |
-110.5 |
-137.2 |
197.5 |
|
CO2(g) |
-393.5 |
-394.4 |
213.7 |
|
CO2(aq) |
-412.9 |
-386.2 |
121 |
|
CO3-2(aq) |
-676.26 |
-528.10 |
-53.1 |
|
CS2(g) |
115.3 |
65.1 |
237.8 |
|
CS2(l) |
87.9 |
63.6 |
151 |
|
HCO3-1(aq) |
-691.11 |
587.06 |
95.0 |
|
H2CO3(aq) |
-698.7 |
-623.42 |
191 |
|
H2O2 |
-187.6 |
-118.1 |
? |
|
CH4(g) |
-74.87 |
-50.81 |
186.1 |
|
C2H2(g) |
227 |
209 |
200.85 |
|
C2H4(g) |
52.47 |
68.36 |
219.22 |
|
C2H6(g) |
-84.667 |
-32.89 |
229.5 |
|
C3H8(g) |
-105 |
-24.5 |
269.9 |
|
C4H10(g) |
-126 |
-16.7 |
310 |
|
C6H6(l) |
49.0 |
124.5 |
172.8 |
|
CH3OH(g) |
-201.2 |
-161.9 |
238 |
|
CH3OH(l) |
-238.6 |
-166.2 |
127 |
|
C2H5OH(l) |
-277.63 |
-174.8 |
161 |
|
CH3COOH(l) |
-487.0 |
-392 |
160 |
|
C6H12O6(s) |
-1274.5 |
-910.56 |
212.1 |
|
CS2(l) |
87.9 |
63.6 |
151.0 |
|
CH3Cl(g) |
-83.7 |
-60.2 |
234 |
|
CH2Cl2(l) |
-117 |
-63.2 |
179 |
|
CHCl3(l) |
-132 |
-71.5 |
203 |
|
CCl4(l) |
-139 |
-68.6 |
214.4 |
|
Cl2(g) |
0 |
0 |
223.0 |
|
Cl-1(aq) |
-167.46 |
-131.17 |
55.10 |
|
HCl(g) |
-92.31 |
-95.30 |
186.79 |
|
Cr(s) |
0 |
0 |
23.8 |
|
Cr+3(aq) |
-1971 |
---- |
---- |
|
CrO4-2(aq) |
-863.2 |
-706.3 |
38 |
|
CrO7-2(aq) |
-1461 |
-1257 |
214 |
|
Cu(s) |
0 |
0 |
33.1 |
|
Cu(g) |
341.1 |
301.4 |
166.29 |
|
Cu+1(aq) |
51.9 |
50.2 |
-26 |
|
Cu+2(aq) |
64.39 |
64.98 |
-98.7 |
|
Cu2O(s) |
-168.6 |
-146.0 |
93.1 |
|
CuO(s) |
-157.3 |
-130 |
42.63 |
|
F2(g) |
0 |
0 |
202.7 |
|
F-1(aq) |
-329.1 |
-276.5 |
-9.6 |
|
H2(g) |
0 |
0 |
130.6 |
|
H+1(aq) |
0 |
0 |
0 |
|
I2(s) |
0 |
0 |
116.14 |
|
I2(g) |
62.442 |
19.38 |
260.58 |
|
I-1(aq) |
-55.94 |
-51.67 |
109.4 |
|
HI(g) |
25.9 |
1.3 |
206.33 |
|
Fe(s) |
0 |
0 |
27.3 |
|
Fe+3(aq) |
-47.7 |
-10.5 |
-293 |
|
Fe+2(aq) |
-87.9 |
-84.94 |
113 |
|
FeO(s) |
-272.0 |
-251.4 |
60.75 |
|
Fe2O3(s) |
-825.5 |
-743.6 |
87.400 |
|
Pb(s) |
0 |
0 |
64.785 |
|
Pb+2(aq) |
1.6 |
-24.3 |
21 |
|
Li(s) |
0 |
0 |
29.10 |
|
Li+1(aq) |
-278.46 |
-293.8 |
14 |
|
Mg(s) |
0 |
0 |
32.69 |
|
Mg(g) |
150 |
115 |
148.55 |
|
Mg+2(aq) |
-461.96 |
-456.01 |
118 |
|
MgCl2(s) |
-641.6 |
-592.1 |
89.630 |
|
MgCO3(s) |
-1112 |
-1028 |
65.86 |
|
MgO(s) |
-601.2 |
-569.0 |
26.9 |
|
Mn(s) |
0 |
0 |
31.8 |
|
Mn+2(aq) |
-219 |
-223 |
-84 |
|
MnO2(s) |
-520.9 |
-466.1 |
53.1 |
|
MnO4-(aq) |
-518.4 |
-425.1 |
190 |
|
Ni(s) |
0 |
+29.9 |
0 |
|
Ni+2 (aq) |
-54.0 |
-128.9 |
-45.6 |
|
N2(g) |
0 |
0 |
191.5 |
|
N2O(g) |
82.05 |
104.2 |
219.7 |
|
NO(g) |
90.29 |
86.60 |
210.65 |
|
NO2(g) |
33.2 |
51 |
239.9 |
|
N2O4(g) |
9.16 |
97.7 |
304.3 |
|
NH3(g) |
-45.9 |
-16 |
193 |
|
NH3(aq) |
-80.83 |
26.7 |
110 |
|
N2H4(l) |
50.63 |
149.2 |
121.2 |
|
NO3-1(aq) |
-206.57 |
-110.5 |
146 |
|
NH4Cl(s) |
-314.4 |
-203.0 |
94.6 |
|
O2(g) |
0 |
0 |
205.0 |
|
O3(g) |
143 |
163 |
238.82 |
|
OH-1(aq) |
-229.94 |
-157.30 |
-10.54 |
|
H2O(g) |
-241.826 |
-228.60 |
188.72 |
|
H2O(l) |
-285.840 |
-237.192 |
69.940 |
|
PO4-3(aq) |
-1266 |
-1013 |
-218 |
|
HPO4-2(aq) |
-1281 |
-1082 |
-36 |
|
H2PO4-1(aq) |
-1285 |
-1135 |
89.1 |
|
H3PO4(aq) |
-1277 |
-1019 |
228 |
|
K(s) |
0 |
0 |
64.672 |
|
K+1(aq) |
-251.2 |
-282.28 |
103 |
|
KF(s) |
-568.6 |
-538.9 |
66.55 |
|
KCl(s) |
-436.7 |
-409.2 |
82.59 |
|
KBr(s) |
-394 |
-380 |
95.94 |
|
KI(s) |
-328 |
-323 |
106.39 |
|
KOH(s) |
-424.8 |
-379.1 |
78.87 |
|
KClO3(s) |
-397.7 |
-296.3 |
143.1 |
|
KClO4(s) |
-432.75 |
-303.2 |
151.0 |
|
Si(s) |
0 |
0 |
18.0 |
|
SiF4(g) |
-1614.9 |
-1572.7 |
282.4 |
|
SiO2(s) |
-910.9 |
-856.5 |
41.5 |
|
Ag(s) |
0 |
0 |
42.702 |
|
Ag(g) |
289.2 |
250.4 |
172.892 |
|
Ag+1(aq) |
105.9 |
77.111 |
73.93 |
|
AgF(s) |
-203 |
-185 |
84 |
|
AgCl(s) |
-127.03 |
-109.72 |
96.11 |
|
AgBr(s) |
-99.51 |
-95.939 |
107.1 |
|
AgI(s) |
-62.38 |
-66.32 |
114 |
|
AgNO3(s) |
-45.06 |
19.1 |
128.2 |
|
Ag2S(s) |
-31.8 |
-40.3 |
146 |
|
Na(s) |
0 |
0 |
51.446 |
|
Na+1(aq) |
-239.66 |
-261.87 |
60.2 |
|
NaF(s) |
-575.4 |
-545.1 |
51.21 |
|
NaCl(s) |
-411.1 |
-384.0 |
72.12 |
|
NaBr(s) |
-361 |
-349 |
86.82 |
|
NaOH(s) |
-425.609 |
-379.53 |
64.454 |
|
Na2CO3(s) |
-1130.8 |
-1048.1 |
139 |
|
NaHCO3(s) |
-947.7 |
-851.9 |
102 |
|
NaI(s) |
-288 |
-285 |
98.5 |
|
Sr(s) |
0 |
0 |
54.4 |
|
Sr+2(aq) |
-545.51 |
-557.3 |
-39 |
|
SrCl2(s) |
-828.4 |
-781.2 |
117 |
|
SrCO3(s) |
--1218 |
-1138 |
97.1 |
|
SrO(s) |
-592.0 |
-562.4 |
55.5 |
|
SrSO4(s) |
-1445 |
-1334 |
122 |
|
S(rhombic) |
0 |
0 |
31.9 |
|
S(monoclinic) |
0.30 |
0.096 |
32.6 |
|
S-2(aq) |
41.8 |
83.7 |
22 |
|
HS-1(aq) |
-17.7 |
12.6 |
61.1 |
|
H2S(g) |
-20.2 |
-33 |
205.6 |
|
H2S(aq) |
-39 |
-27.4 |
122 |
|
SO2(g) |
-296.8 |
-300.2 |
248.1 |
|
SO3(g) |
-396 |
-371 |
256.66 |
|
SO4-2(aq) |
-907.51 |
-741.99 |
17 |
|
HSO4-1(aq) |
-885.75 |
-752.87 |
126.9 |
|
Zn(s) |
0 |
0 |
41.6 |
|
Zn+2(aq) |
-152.4 |
-147.21 |
-106.5 |
|
ZnO(s) |
-348.0 |
-318.2 |
43.9 |
Hf°
(kJ/mol)Back to Chemistry Reference Data
Prepared with the support and help of the North Carolina Department of Public Instruction.