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§ 1 . It is shown by statistical quantum mechanics that the vapor pressure constant of an ammonia molecule whose principal moments of inertia are A , A , and C is i = log 64 π 5 m 3 2 k 4 A C 1 2 h 6 + Σ r D r log G r ω 0 r at ordinary temperatures; where m is the mass, k is Boltzmann's...
A new interpretation of reflection spectra in solids, particularly Sm Cl 2 ·6 H 2 O, is offered. The appearance of new absorption lines and the strengthening of others in the spectrum of a conglomerate as compared with that of a single crystal is explained as being caused by an increased path...
It is shown that by Kronig's quantum theory of dispersion in metals one can account for the shift of the frequency at which maximum transmission is found for silver when the temperature is varied. The calculated rate of shift is in fair agreement with experiment.
Measurements have been made on the total radiation from very pure, well seasoned tantalum from 1000°K to 2220°K. A spectral temperature scale, λ = 0.667 μ, is given up to 2100°K. The variation of the resistance of tantalum has been measured up to 2600°K and the thermoelectric power of...
The absorption spectrum of cyanogen gas has been investigated in the ultraviolet down to λ 1800 . In the region λ λ 2 3 0 0 - 1 8 2 0 more than one hundred bands were found which apparently belong to one system with origin probably at 44900 cm - 1 . The bands have a pronounced tendency to...
The theory regarding the degenerate electronic gas inside an electron-conductor producing an electronic gas, i.e., the surface-electrons, covering the surface of the conductor is applied to the ordinary and the selective photo-effect and the evaporation from heated metals. Further, it is...
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