Eine Revision der Gleichgewichtsbedingung der Gase. Thermische Molekularströmung

Knudsen, Martin

doi:10.1002/andp.19093360110

Cited by 170 publications

(122 citation statements)

References 1 publication

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“…Here, I 0 is the intensity of the non-attenuated beam (in vacuum), n is the number density of the target gas, l = 141.3 mm is the effective collision chamber length, k is the Boltzmann constant, and T = √ T c T m is the gas temperature (in K) calculated according to the thermal transpiration effect 25 between the manometer at T m and the collision chamber at T c . Further details on the experimental apparatus and procedures can be found in Fuss et al 22 The experimental uncertainties on the present measurements lie in the range 1.8%-5.0% (for the incident energies of this study), including the uncertainties in the determination of the collision chamber length, sample gas pressure, temperature, and incident beam energy.…”

Section: Experimental Methodsmentioning

confidence: 99%

An investigation into electron scattering from pyrazine at intermediate and high energies

Sanz

Fuß

Blanco

et al. 2013

The Journal of Chemical Physics

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Total electron scattering cross sections for pyrazine in the energy range 10-500 eV have been measured with a new magnetically confined electron transmission-beam apparatus. Theoretical differential and integral elastic, as well as integral inelastic, cross sections have been calculated by means of a screening-corrected form of the independent-atom representation (IAM-SCAR) from 10 to 1000 eV incident electron energies. The present experimental and theoretical total cross sections show a good level of agreement, to within 10%, in the overlapping energy range. Consistency of these results with previous calculations (i.e., the R-matrix and Schwinger Multichannel methods) and elastic scattering measurements at lower energies, below 10 eV, is also discussed. © 2013 AIP Publishing LLC.

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Section: Experimental Methodsmentioning

confidence: 99%

An investigation into electron scattering from pyrazine at intermediate and high energies

Sanz

Fuß

Blanco

et al. 2013

The Journal of Chemical Physics

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“…III A), k is the Boltzmann constant, and T = √ T c T m is the gas temperature (K) calculated according to the thermal transpiration effect [25] between the manometer at T m and the collision chamber at T c .…”

Section: Measurement Protocolsmentioning

confidence: 99%

Total electron-scattering cross sections from pyrimidine as measured using a magnetically confined experimental system

et al. 2013

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“…*«=Ao -^r (14) where /? is a constant and k0 is the mean free path of the molecules not affected by the potential energy or at very high temperature (!T->oo).…”

Section: Theorymentioning

confidence: 99%

Gas diffusion in microporous media in Knudsen's regime.

Shindo

Hakuta

Yoshitome

et al. 1983

J. Chem. Eng. Japan

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A diffusion equation for gas permeation through microporous media in the Knudsenregime was obtained theoretically, considering the potential energy between a gas molecule and the solid surface of pores. The equation as a function of temperature contains four parameters, all of which have physical meanings. The most significant of these parameters is the effective potential energy £*, by which the gas diffusion equation as a function of temperature is characterized. Permeabilities of He, H2, CO, N2, O2, Ar, and CO2 through a microporous Vycor glass membranewere measured in the temperature range from 300Kto 950K. The validity of the diffusion equation obtained was verified experimentally and was shownto express well the previous data.For helium in particular, diffusion is almost gas-phase flow, with no adsorbed flow except at very low temperature. However, the diffusion is affected by the interaction energy between the gas molecules and the solid surface in the pores.

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Eine Revision der Gleichgewichtsbedingung der Gase. Thermische Molekularströmung

Cited by 170 publications

References 1 publication

An investigation into electron scattering from pyrazine at intermediate and high energies

An investigation into electron scattering from pyrazine at intermediate and high energies

Total electron-scattering cross sections from pyrimidine as measured using a magnetically confined experimental system

Gas diffusion in microporous media in Knudsen's regime.

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