ZnO2-2

Formula : ZnO2-2

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
97.389 -26.688 (Ref.: 14aki/tag) Akinfiev, N., Tagirov, B., 2014. Zn in hydrothermal systems: thermodynamic description of hydroxide, chloride, and hydrosulfide complexes. Geochemistry International 52, 197-214. -390242 (Ref.: Internal calculation) -552706 (Ref.: 14aki/tag) Akinfiev, N., Tagirov, B., 2014. Zn in hydrothermal systems: thermodynamic description of hydroxide, chloride, and hydrosulfide complexes. Geochemistry International 52, 197-214. -167.360 (Ref.: 14aki/tag) Akinfiev, N., Tagirov, B., 2014. Zn in hydrothermal systems: thermodynamic description of hydroxide, chloride, and hydrosulfide complexes. Geochemistry International 52, 197-214. -47.08 (Ref.: 14aki/tag) Akinfiev, N., Tagirov, B., 2014. Zn in hydrothermal systems: thermodynamic description of hydroxide, chloride, and hydrosulfide complexes. Geochemistry International 52, 197-214.
HKF coefficients
a1·10
J·mol-1·bar-1
 a2·10-2
J·mol-1
 a3
J·K·mol-1·bar-1
 a4·10-4
J·K·mol-1
 c1
J·mol-1·K-1
 c2·10-4
J·K·mol-1
 ω·10-5
J·mol-1
-2.3259 -38.2196 39.0371 -10.0470 136.3300 -25.4806 15.9896
Reaction properties

Zn+2 + 2H2O ⇌ ZnO2-2 + 4H+

298.15 K, 1 bar log10K: -40.52 ΔH°r:172339 J·mol-1 (Ref.: 14aki/tag) Akinfiev, N., Tagirov, B., 2014. Zn in hydrothermal systems: thermodynamic description of hydroxide, chloride, and hydrosulfide complexes. Geochemistry International 52, 197-214.
T(°C) 0 25 60 100 150 200 250 300
log10K -43.32 -40.52 -37.40 -34.69 -32.20 -30.44 -29.25 -28.64
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-930.812864 -0.155485 40199.700382 337.141582 -2881231.920598