Die spezifische Wärme von Helium und einigen zweiatomigen Gasen

Scheel, Karl; Heuse, W.

doi:10.1002/andp.19133450305

Cited by 39 publications

(4 citation statements)

References 7 publications

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“…Crit. Tables 5, 80), there is a slight fall in the specific heat of oxygen to 4-91 at liquid-oxygen temperatures (Scheel & Heuse 1913;I.C .T. 5,80), where the value for hydrogen falls to 3-26cal./mole (Scheel & Heuse 1913;I.C .T.…”

Section: (D) the Theoretical Heat Lossmentioning

confidence: 96%

The thermal accommodation coefficients of gases. II. Determinations at room and at liquid-oxygen temperatures

Bremner

1950

Proc. R. Soc. Lond. A

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The accommodation coefficients of helium, neon, argon, hydrogen and oxygen, on a tungsten surface, are smaller at liquid-oxygen than at room temperature. The accommodation coefficients of the inert gases varies, at both temperatures, approximately as the square root of the atomic weights. The increase in the accommodation coefficient of helium, with the hot-working of the wire observed by Roberts (1930), has not been confirmed for heating times up to 30 hr.

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Section: (D) the Theoretical Heat Lossmentioning

confidence: 96%

The thermal accommodation coefficients of gases. II. Determinations at room and at liquid-oxygen temperatures

Bremner

1950

Proc. R. Soc. Lond. A

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“…Values of the Specfic Heats. The only direct observation of the specific heat of nitrogen a t constant pressure and a t the tem perature of liquid air is th a t of Scheel and Heuse (10). The value of the ratio deduced from their measurements, using B erthelot's equation, * The applicability of the full correction to their experiments on hydrogen is still more doubtful as any thermometric effect giving rise to such a correction would depend on the nature of the gas surrounding the thermometer wire.…”

Section: Recent Work By Other Observersmentioning

confidence: 99%

The ratios of the specific heats of nitrogen at atmospheric pressure and at temperatures between 10˚ C. and - 183˚C

1926

Proc. R. Soc. Lond. A

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These measurements of the ratios of the specific heats of nitrogen, a t room and a t lower tem peratures, have been made, and the results have been calculated, in exactly the same way as those obtained when air and hydrogen were used. The latter were described in a former paper, (1) in which will be found a description of the apparatus and an account of the method of dealing with the experimental results. In the work which follows the same apparatus was employed, the only changes being th a t a new platinum wire (from the same reel) was used on the thermometer, and, owing to breakage, a rather finer quartz suspension had been p u t on the galvanometer. However, as the apparatus had to be dismantled for transference to another laboratory I thought it desirable to confirm some of the effects and relationships previously noted ; therefore, a full set of experiments with the four expansion vessels was made a t room tem perature. I t may be recalled th a t the method has been especially worked out, using small expansion vessels in order th a t values of the ratios of the specific heats can be readily obtained a t different tem peratures. Up to the present time work has been restricted to determinations a t temperatures below th a t of the laboratory. Several vessels are used in order to allow a correction to be made for a systematic change in the apparent value of the ratio, which depends on the size of the vessel employed.

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“…Soon thereafter, the temperature-dependent heat capacities of several other gases were also measured, in particular by Scheel and Heuse. 7 Eucken tried to represent his data by an expression of the form in Eq. ͑3͒, augmented by a 3 2 R term.…”

Section: Introductionmentioning

confidence: 99%

On the Einstein–Stern model of rotational heat capacities

Dahl

1998

The Journal of Chemical Physics

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The Einstein-Stern model for the rotational contribution to the heat capacity of a diatomic gas has recently been resuscitated. In this communication, we show that the apparent success of the model is illusory, because it is based on what has turned out to be an unfortunate comparison with experiment. We also take exception to the possibility of assigning any meaning to the rotational zero-point energy introduced by the model.

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Die spezifische Wärme von Helium und einigen zweiatomigen Gasen

Abstract: Annalen der Physik. 1V. Folge. 4 4). 1) A. B e s t e l m e y e r u. S. Valentiner, Ann. d. Phys. 15. p. 61 2) A. E u c k e n , Sitzungsber. der Berl. Akad. der Wissensch. 1919. bis 73. 1904. p. 141-151.

Cited by 39 publications

References 7 publications

The thermal accommodation coefficients of gases. II. Determinations at room and at liquid-oxygen temperatures

The thermal accommodation coefficients of gases. II. Determinations at room and at liquid-oxygen temperatures

The ratios of the specific heats of nitrogen at atmospheric pressure and at temperatures between 10˚ C. and - 183˚C

On the Einstein–Stern model of rotational heat capacities

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