Co(FeO2)2(alpha)

Formula : Co(FeO2)2

Family: 
Oxides

Dernière mise à jour le 25.01.2021

THERMODYNAMICS

Individual properties (298.15 K)
M
g·mol-1
 V°
cm3·mol-1
 ΔGºf
J·mol-1
 ΔHºf
J·mol-1
 Sº
J·mol-1·k-1
 CP
J·mol-1·K-1
234.625 44.270 (Ref.: 94pan) Pankratz L. B., 1994, Thermodynamic Properties of Carbides, Nitrides, and Other Selected Substances (U. S. Bureau of Mines Bulletin 696, 1994, 957 p). -1032307 (Ref.: Internal calculation) -1139720 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp. 134.720 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp. 152.71 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp.
CP(T) = a + b·T + ·c·T-2 (T in Kelvin)
a
J·mol-1·K-1
 b * 103
J·mol-1·K-2
 c * 10-5
J·K·mol-1
 Maier Kelley Ref.
127.49 132.09 -12.59 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp.
Reaction properties

Co(FeO2)2(alpha) + 8H+ ⇌ Co+2 + 2Fe+3 + 4H2O

298.15 K, 1 bar log10K: 0.77 ΔH°r:-159200 J·mol-1 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp.
T(°C) 0 25 60 100 150 200 250 300
log10K 3.32 0.77 -2.16 -4.84 -7.55 -9.84 -11.95 -14.05
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-1360.905852 -0.215923 77662.035863 488.204006 -3773589.672993