Summary
Further experiments on the self-diffusion coefficientD of liquid Indium and Tin give evidence of an effect of the diameter size of the capillaries used. This effect is important for Indium and is almost negligible for Tin. The values ofD measured in the capillaries of the largest size (1.60 mm diameter) are taken to be the correct values for the self-diffusion coefficient. This is because using capillaries with diameter >1.6 mm the values ofD were constant in the experimental error. The dependence ofD from the absolute temperature is of Arrhenius type: for Indium:
for Tin:
Riassunto
Una nuova serie di misure del coefficiente di autodiffusioneD dell’Indio e dello Stagno liquidi mostra l’influenza della sezione del capillare sul valore numerico diD. Questo effetto è importante per l’Indio e quasi trascurabile per lo Stagno. Si assumono come valori corretti diD i valori ottenuti con i capillari di diametro maggiore (1.6 mm) avendo visto che per diametri ancora più grandiD restava costante entro l’errore. La dipendenza diD dalla temperatura assoluta segue la legge di Arrhenius: per l’Indio:
per lo Stagno:
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References
A. Lodding:Zeit. f. Naturfors.,2 a, 3, 200, 203 (1956).
G. Careri andA. Paoletti:Nuovo Cimento,2, 574 (1955).
R. E. Hoffman:Journ. Chem. Phys.,20, 1567 (1958).
H. G. Drickamer andR. E. Eckert:Journ. Chem. Phys.,20, 13 (1952).
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Careri, G., Paoletti, A. & Vicentini, M. Further experiments on liquid Indium and Tin self-diffusion. Nuovo Cim 10, 1088–1099 (1958). https://doi.org/10.1007/BF02859571
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DOI: https://doi.org/10.1007/BF02859571