Physics
Scientific paper
Feb 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995gecoa..59..475h&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 59, Issue 3, pp.475-479
Physics
3
Scientific paper
The free energy of formation of Cr 2 O 3 , defined by the reaction 2 Cr + 3/2 O 2 = Cr 2 O 3 has been measured electrochemically using a yttria-doped thoria (YDT) solid electrolyte, in the temperature range from 900 to 1400 K. Fe + "FeO" was used as the reference electrode. The results have been combined with high temperature heat capacity data from the literature, to give, in J · mol -1 O 2 (±170) = -758.585 + 349.718 T -25.5216 T + 0.00935 T 2 (600 K < T < 1800 K) Our results are not in good agreement with the calorimetric data and imply that the currently accepted calorimetric value for the entropy of Cr 2 O 3 at 298.15 K may be too low by 4.6 J/K · mol.
Holzheid Astrid
O'Neill Hugh St. C.
No associations
LandOfFree
The Cr---Cr 2 O 3 oxygen buffer and the free energy of formation of Cr 2 O 3 from high-temperature electrochemical measurements does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Cr---Cr 2 O 3 oxygen buffer and the free energy of formation of Cr 2 O 3 from high-temperature electrochemical measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Cr---Cr 2 O 3 oxygen buffer and the free energy of formation of Cr 2 O 3 from high-temperature electrochemical measurements will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1634531