File:The Rate of Solution of Hydrogen by Palladium (1914) (14782556714).jpg

Identifier: philtrans07338288 (find matches)
Title: The Rate of Solution of Hydrogen by Palladium
Year: 1914 (1910s)
Authors: Holt, A.
Subjects: Proceedings of the Royal Society of London Philosophical Transactions of the Royal Society
Publisher: Royal Society of London

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0 IZO 240 360 Vol. of gas occluded by 1 vol. of metal. Fig. 3. have been increased in each case by 10 seconds above the times in Table II,while No. 3, fig. 4, is plotted in half values. An examination of these graphs shows that at ordinary temperatures(15° C.) there is, except in the case of palladium black, a more or less 232 JL«^x » maTju* JI—I.V/X U* pronounced deflection of the curve, not, however, always coinciding with a constant concentration of gas in the metal. The curves may be considered as composite, two of similar general formbeing partially superimposed. Thus in the case of thin foil the initial portionmay be taken to represent the region where the first curve merges into 0
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120 240 360 480 Vol. of gas occluded by 1 vol. of metal. Fig. 4. 600 the second, the graph consisting almost entirely of this latter, whilst forthick foil, the break between the two curves occurs more towards the centre of the figure. It could, perhaps, be argued that the change of curvature is so slight thatit might well arise from errors in observation, but against this view must be The Rate of Solution of Hydrogen by Palladium. 233 set the fact that no deflection occurs with palladium black, whereas with theother forms of the metal there is no curve but exhibits it to some extent.These curves cannot be expressed by any simple formula, but the relation- 0 r

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