Thermodynamic Properties of Substances and Ions at 25° C
Group VIB
For one mole at 298K and 1 atmosphere pressure
Substance (form) | Enthalpy DfH (kJ) | Gibbs DfG (kJ) | Entropy (J/ K |
[Cr(H2O)6]3+(aq) | -1971 | ... | ... |
Cr(s) | 0 | 0 | 23.8 |
CrO42-(aq) | -863.2 | -706.3 | 38 |
Cr2O72-(aq) | -1461 | -1257 | 214 |
Group VIIB
For one mole at 298K and 1 atmosphere pressure
Substance (form) | Enthalpy DfH (kJ) | Gibbs DfG (kJ) | Entropy (J/ K |
Mn2+(aq) | -219 | -223 | -84 |
Mn(s, a) | 0 | 0 | 31.8 |
MnO2(s) | -520.9 | -466.1 | 53.1 |
MnO4-(aq) | -518.4 | -425.1 | 190 |
Group VIIIB
For one mole at 298K and 1 atmosphere pressure
Substance (form) | Enthalpy DfH (kJ) | Gibbs DfG (kJ) | Entropy (J/ K |
Fe3+(aq) | -47.7 | -10.5 | -293 |
Fe2+(aq) | -87.9 | -84.94 | 113 |
Fe(s) | 0 | 0 | 27.3 |
FeO(s) | -272.0 | -251.4 | 60.75 |
Fe2O3(s) | -825.5 | -743.6 | 87.400 |
Fe3O4(s) | -1121 | -1018 | 145.3 |
Co2+(aq) | -67.4 | -51.5 | -155 |
Co(s) | 0 | 0 | 30 |
Ni2+(aq) | -64.0 | -46.4 | -159 |
Ni(s) | 0 | 0 | 30.1 |
Most of data from Ebbing, Darrell D., General Chemistry, 3rd Ed., Appendix C, Houghton-Mifflin, 1990.
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Index
Tables
Reference Ebbing |