Studies; Reprints Volume 39

Studies; Reprints Volume 39

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 edition. Excerpt: ...electrostatic, since in this case the action of the anion depends on the negative charge in its outermost shell of electrons and the electrostatic efiect should be the greater the farther the shell is removed from the positive nucleus of the ion; while the electrostatic eflect of the cation is due to the positive charge of the nucleus and this should be the greater the smaller the distance between nucleus and the outermost layer of electrons, i.e. the closer the positive nucleus can approach the water particles or the membrane particles on which the ion is to act. ' IV. We have alluded to the fact that collodion membranes are not strictly semipermeable and that crystalline solutes diffuse out from ' the collodion flasks in our experiments. It might be argued that the differences in the flow of water measured in the preceding chapter are due to differences in the rate of diffusion of electrolytes from the side of the solution to the side of pure water through the collodion membrane. This assumption is, however, not tenable since it can be shown that the difiusion of the solutes into the pure water through the collodion membrane seems to follow Fick's diffusion law, according to which the rate of diffusion of a solute is directly proportional to its concentration and this seems to hold equally in the case of electrolytes and non-electrolytes. The specific influence of solutions of electro lytes on the rate of diffusion of water from pure water through collodion membranes into solutions can therefore not be due to any difference in the rate of diffusion of electrolytes and non-electrolytes through the membrane into the pure water, but must be ascribed to'a difference in the behavior of water towards these two types of solutes. We...
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Product details

  • Paperback | 188 pages
  • 189 x 246 x 10mm | 345g
  • United States
  • English
  • black & white illustrations
  • 1236810228
  • 9781236810229