By Lewis G.N., Mayer J.E.
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Extra info for A Disproof of the Radiation Theory of Chemical Activation
If their weight is small compared with the forces arising from the charges on them. An electric charge on the particles of the solute is, therefore, a further factor tending to keep the particles uniformly distributed in the solvent. third factor governing the final distribution of A the solute is the surface energy. This becomes obvious if we consider the total energy of the system. If the dissolved substance diminishes the surface tension of the solution, an excess of concentration in the surface layer diminishes the surface energy and possibly the total energy of the system.
Advisable to consider quite generally what factors affect t the concentration for instance, the distribution of a solute in a solvent. Let us assume a solution of a non-electrolyte in water, separated from the pure solvent water by a semipermeable membrane forming a piston (Fig. 8). , the solution can do work or possesses potential energy owing to its osmotic pressure. FIG. 8. If the membrane is removed, the osmotic pressure causes diffusion until (if no other forces are active) the solute is uniformly distributed through the solvent.
Possible to calculate 3 volume, , ^Trr the of a drop. o 9. '447 The solution total surface of oil in contact with the is the number N, of drops, multiplied by SURFACE TENSION AND 44 the surface of one drop, and was found to be 31,553 sq. cms. After allowing the emulsion to stand for a time the drop number was taken, the assumption being made that the oil globules would have no effect. The figures were : Before emulsification 483 Drop number After emulsification : = = 459 a- : = = 12-8 c -318%
A Disproof of the Radiation Theory of Chemical Activation by Lewis G.N., Mayer J.E.