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Data
H
2
S
Formula : H
2
S
Dernière mise à jour le
25.01.2021
THERMODYNAMICS
Individual properties (298.15 K)
M
g·mol
-1
V°
cm
3
·mol
-1
ΔGº
f
J·mol
-1
ΔHº
f
J·mol
-1
Sº
J·mol
-1
·k
-1
C
P
J·mol
-1
·K
-1
34.082
35.048
(Ref.: 89bsho/hel, 01sch/sho) Shock E.L., Helgeson H.C. and Sverjensky D.A., 1989. Calculation of the thermodynamic and transport properties of aqueous species at high pressures and temperatures: Standard partial molal properties of inorganic neutral species. Geochim. Cosmochim. Acta, 53, pp. 2157-2183. AND Schulte M.D., Shock E.L. and Wood R.H., 2001. The temperature dependence of the standard-state thermodynamic properties of aqueous nonelectrolytes. Geochimica et Cosmochimica Acta, 65, 3919-3930
-27648
(Ref.: Internal calculation)
-38600
(Ref.: 89cox/wag) Cox J.D., Wagman D.D., and Medvedev V.A., 1989. CODATA Key Values for Thermodynamics. Hemisphere Publishing Corp., New York, 279 p.
126.000
(Ref.: 89cox/wag) Cox J.D., Wagman D.D., and Medvedev V.A., 1989. CODATA Key Values for Thermodynamics. Hemisphere Publishing Corp., New York, 279 p.
173.82
(Ref.: 89bsho/hel, 01sch/sho) Shock E.L., Helgeson H.C. and Sverjensky D.A., 1989. Calculation of the thermodynamic and transport properties of aqueous species at high pressures and temperatures: Standard partial molal properties of inorganic neutral species. Geochim. Cosmochim. Acta, 53, pp. 2157-2183. AND Schulte M.D., Shock E.L. and Wood R.H., 2001. The temperature dependence of the standard-state thermodynamic properties of aqueous nonelectrolytes. Geochimica et Cosmochimica Acta, 65, 3919-3930
Reaction properties
HS
-
+ H
+
⇌ H
2
S
298.15 K, 1 bar
log
10
K:
6.99
ΔH°
r
:
-22300 J·mol
-1
(Ref.: 89cox/wag) Cox J.D., Wagman D.D., and Medvedev V.A., 1989. CODATA Key Values for Thermodynamics. Hemisphere Publishing Corp., New York, 279 p.
T(°C)
0
25
60
100
150
200
250
300
log
10
K
7.41
6.99
6.65
6.49
6.50
6.68
7.02
7.55