ZnO

Formula : ZnO

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
81.389 -6.240 (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. -274931 (Ref.: Internal calculation) -301984 (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. 53.555 (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. -125.90 (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
3.8120 -23.2497 33.1963 -10.6663 -145.1430 9.4680 0.0000
Reaction properties

Zn+2 + H2O ⇌ ZnO + 2H+

298.15 K, 1 bar log10K: -19.17 ΔH°r:137231 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 -21.41 -19.17 -16.71 -14.58 -12.63 -11.20 -10.11 -9.21
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
439.069481 0.055380 -30039.744161 -156.270881 1127319.114281