Cu(element)

Formula : Cu

Family: 
Element
Space group: 
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F m3m
Dana class: 
1.1.1.3 (1)Native Elements (1.1) with metallic elements other than the platinum group (1.1.1) Gold group
High temperature: 
Occurs mainly during the weathering process of sulfides bleaching. High temperature copper exits from smelting of copper ores.
Geological context: 
Occurs chiefly in cap rock (oxidation zone) of copper sulfide veins

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
63.546 7.113 (Ref.: 95rob/hem) Robie R.A., and Hemingway B.S., 1995. Thermodynamic properties of minerals and related substances at 298.15 K and 1 Bar (105 Pascals) pressure and at higher temperatures. U.S. Geol. Survey Bull., 2131, 461 pp. 0 (Ref.: Internal calculation) 0 (Ref.: By convention) 33.150 (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. 24.44 (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.
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.
24.36 3.99 -0.99 (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.
Reaction properties

Cu(element) + 0.5O2 + 2H+ ⇌ Cu+2 + H2O

298.15 K, 1 bar log10K: 31.60 ΔH°r:-214586 J·mol-1 (Ref.: By convention)
T(°C) 0 25 60 100 150 200 250 300
log10K 35.02 31.60 27.63 23.98 20.35 17.42 14.98 12.85
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-425.407584 -0.065328 34382.059726 152.240536 -1381507.174093