The book Physical Chemistry in the Service of the Sciences was written by author J H Vant Jacobus Henricus Vant Hoff Here you can read free online of Physical Chemistry in the Service of the Sciences book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Physical Chemistry in the Service of the Sciences a good or bad book?
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To complete the figure, we require the solubility of sodium chloride, which is expressed by the formulae [1000H 2 OH-lllNaCl] (A, Fig. 7), and that of potassium chloride, which is [1000H 2 O + 88KC1] (B, Fig. 7). Now, with O as origin, let us lay off the amount of sodium chloride in the vertical direction and that of potassium chloride horizontally to the right. When this is done the data given above lead to three points, which we have desig- nated in order C, A, B, and if we now connect A and ...B with C the line AC represents saturation with sodium chloride, while the proportion of potassium chloride increases. Simi- larly, the line BC stands for saturation with potassium chloride, while the content of sodium chloride increases. It is now easy to see what must take place when any solution is concentrated. Let it be an unsaturated one, corresponding in composition to a point c inside the area OACB, its situation being given by the proportions of the respective chlorides. When evaporation begins, the relative 104 PHYSICAL CHEMISTRY proportions of the chlorides do not alter, but their quantity, calculated on the basis of the number of molecules in every 1000H 2 O, must increase.
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