O2(g)

Formula : O2

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
31.999 7.200 (Ref.: 18sig) SIGARRR, 2018. Forthcoming results from the project. 0 (Ref.: Internal calculation) 0 (Ref.: By convention) 205.152 (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. 29.38 (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.
24.99 11.43 (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

O2(g) ⇌ O2

298.15 K, 1 bar log10K: -2.90 ΔH°r:-12134 J·mol-1 (Ref.: By convention)
T(°C) 0 25 60 100 150 200 250 300
log10K -2.66 -2.90 -3.06 -3.11 -3.04 -2.89 -2.69 -2.43
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
178.012108 0.030292 -11471.729480 -65.497059 942413.376294