English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The heat of occlusion of hydrogen in platinum black was determined by saturating the platinum black with hydrogen, extracting as much of this as possible at 184°C. by means of the pump, and then readmitting it again whilst the experimental tube was placed in an ice calorimeter. By proceeding in this way, errors due to the preexistence of oxygen in the platinum black were avoided, and it was found that 68.8 K (6880g -calories) were evolved per gram of hydrogen occluded. It is shown that the arguments put forward by Berthelot in favour of the existence of the compounds Pt30 H3 and Pt30 H3 are not justified.

On the occlusion of oxygen and hydrogen by platinum black. Part II