Transactions of the American Electrochemical Society Volume 5

Transactions of the American Electrochemical Society Volume 5

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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. 1904 edition. Excerpt: ...As to the removal of the ions, that, however, may require external energy, but it need not come from the solvent. " As long as there is nothing but the solvent and dissolved sub stance present dissociation and recombination progress side by side and equilibrium is maintained. No electrical energy is evolved or absorbed. Now put into the solution two pieces of 1-metal, A and B (Fig. 2), having a--metallic connection C above. In the solution are ] ions and--ions. Is I there any reason for imagining that all of the + ions will move, say to A, and all the--ions to B, that they will make "cents' " contact and mutually discharge through the medium of the connection AC, B? From all we know of charged particles they certainly would not do that. But if they did, they would not pass out of solution. The "discharged" ions would not be molecules and, discharged in this way, they would not be atoms, and would be totally incapable of uniting to form molecules. Then what would happen? A little ionization of the metal at both A and B, an interchange of ions, a little chemical action, but certainly no electric current along C, no electrical energy added or subtracted. Let, however, a + charge be placed on A and a--charge on B. An electrostatic field is now produced in the solvent. + ions immediately move toward B, and----ions toward A. What happens when the--ions reach A? Do they all discharge? If so, the--charge on A is used up and similarly the--charge on B, and in order to maintain the potentials of A and B, and cause the continual motion of the ions and their discharge, an e. m. f. must be inserted in C and electrical energy added to the circuit. But as has just been said the discharged ions cannot form molecules. Supposeshow more

Product details

  • Paperback | 86 pages
  • 189 x 246 x 5mm | 168g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236738004
  • 9781236738004