Dissociation Energy of Gaseous LaO
- 1 April 1956
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 24 (4) , 792-796
- https://doi.org/10.1063/1.1742611
Abstract
The gaseous species in thermodynamic equilibrium with La(l) — La2O3(s) mixtures in the temperature range 1650°K to 1900°K have been studied mass spectrometrically. The major ions observed were La+ and LaO+. These ions were shown to be formed predominantly from La(g) and LaO(g), respectively. A thermodynamic treatment of ion currents yields a value of ΔH00=100±4 kcal/g atom for the heat of vaporization of La(s) and a value of ΔH00=189±8 kcal/mole for the reaction LaO(g)=La(g)+O(g) or D0(LaO)=8.15±0.35 ev.Keywords
This publication has 9 references indexed in Scilit:
- Mass Spectrometric Study of Barium Oxide VaporThe Journal of Chemical Physics, 1955
- A Mass Spectrometric Study of Gaseous Species in the Al–Al2O3 SystemThe Journal of Chemical Physics, 1955
- Direct Determination of the Heat of Sublimation of Carbon with the Mass SpectrometerThe Journal of Physical Chemistry, 1955
- FINE STRUCTURE OF THE SCHUMANN-RUNGE BANDS NEAR THE CONVERGENCE LIMIT AND THE DISSOCIATION ENERGY OF THE OXYGEN MOLECULECanadian Journal of Physics, 1954
- Thermodynamic Properties of the Oxides and their Vaporization Processes.Chemical Reviews, 1953
- The Heat Content, Specific Heat and Entropy of La2O3, Pr6O11 and Nd2O3 Between 30 and 900°1,2Journal of the American Chemical Society, 1951
- The Evaporation Products of Barium Oxide from Various Base Metals and of Strontium Oxide from PlatinumJournal of Applied Physics, 1951
- The atomic heats of the rare-earth elementsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1951
- The Heat of Dissociation of Non-Polar MoleculesPhysical Review B, 1926