The equilibrium between graphite and C,(g) has been investigated by Knudsen effusion mass spectrametry at temperatures between 2630 and 2810 K. Together with thermal functions calculated from experimental and theoretical molecular parameters for the linear cumulenic structure, the third law enthalpy
The enthalpy of formation of the C7 molecule from mass spectrometric equilibrium measurements
β Scribed by Karl A. Gingerich
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 230 KB
- Volume
- 196
- Category
- Article
- ISSN
- 0009-2614
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π SIMILAR VOLUMES
The partial pressures of Si(g) and S&(g) over condensed silicon have been determined by Knudsen effusion mass spectrometry. Thermal functions for Si, have been calculated from recent theoretical results. The values for the atomization enthalpy and the enthalpy of formation for gaseous Si, are: LIH,,
Partial pressures of Si(g) and Si6(g) over condensed silicon have been measured by Knudsen cell mass spectrometry. The atomization energy and enthalpy of formation of Si6(g) was evaluated for the reaction Si6(g) = 6Si(g) with these partial pressures and with thermal functions derived from recent exp
A high-temperature mass-spectrometric study of the vaporization of (silicon+boron nitride) from a boron-nitride Knudsen cell was conducted in the temperature range T = 1688 K to 1921 K. The partial pressures of Si(g), Si2(g), N2(g), and Si2N(g) were determined. The dissociation reaction: Si2N(g)=2Si