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Gibbs Energy Data

Gibbs Energy Data

Gibbs Energy Data

Can anyone suggest me the source of Gibbs Energy Data in general & for FeO, H2CO3 & FeCO3 in particular.


RE: Gibbs Energy Data

Gibbs molar energies of formation can be found in CRC's Handbook of Chemistry and Physics as well as in Lange's Handbook of Chemistry. The first gives

For solid FeO in the range of 300-1800 K:
       -270590+72.64T-1.26TlogT J/mol
For the same in the range of 1800-2000 K:
       -259034-23.42T+10.69TlogT J/mol

Lange's Handbook gives dGf, @ 25 deg C,
FeCO3: -666.7 kJ/mol
H2CO3, std. state, aq: -623.16 kJ/mol
FeO: -251.4 kJ/mol

RE: Gibbs Energy Data

Thanx a lot (25362) for nicely provided values apart from their sources.


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