This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 Excerpt: ...are experimentally ascertainable with the exception of N, the equation furnishes a means of determining Avogadro's constant Actual experiments on ethylene made by Onnes and Keeson have shown that the method is a practical one; and the result of their work led to the value N = 75 x 1022, the experimental error being ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 Excerpt: ...are experimentally ascertainable with the exception of N, the equation furnishes a means of determining Avogadro's constant Actual experiments on ethylene made by Onnes and Keeson have shown that the method is a practical one; and the result of their work led to the value N = 75 x 1022, the experimental error being about 15 per cent. 1 Smoluchowski, Acad. Sci. Cracow, December, 1907. 'Rayleigh, Phil. Mag., 1881, 41, 86; Lorenz, (Euvres, I., 496. As was pointed out by Rayleigh, somewhat similar considerations apply to the blue light which comes to us from the sky on a clear day. Here it is assumed that the nitrogen and oxygen molecules act as diffracting centres. Measurements made by Brillouin1 lead to the value N = 60 x 10, !, but these results are probably not without sources of error. 4. The Determination of N from Properties of Emulsions. In the last chapter, some account was given of Perrin's researches upon the distribution of particles in emulsions; and it was pointed out that he used the equation--in which n and n are the numbers of particles observed in D and d are respectively the densities of the particle and of the liquid in which it floats; R and T are the gas equation constants; g is the gravity constant; and N is Avogadro's constant. It is evident that when Perrin had determined the relative numbers of particles in two layers at different altitudes in the emulsion, he had obtained a means of measuring N, since all the other factors in the equation were known. The results obtained in this way ranged between 65 x 1022 and 72 x 1022, the average being 68-3 x 1022. From this it follows that the mass of the hydrogen atom is in the neighbourhood of l-47 x 10s4 grammes. Perrin2 has utilised direct observation of the Brownian movement in order to deter...
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Add this copy of Some Physico-Chemical Themes to cart. $9.49, fair condition, Sold by Heisenbooks rated 4.0 out of 5 stars, ships from Fairless Hills, PA, UNITED STATES, published 2016 by Palala Press.
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Fair. Size: 6x1x9; Original 1922 Edition, not a modern reproduction. Book may have damage to the cover, pages, spine, or corners. Tape, highlighting/writing, glue, or water damage may be present. Pages are still legible and book is intact. Code is not included. Dustcover may be missing. Worthy buy!
Add this copy of Some Physico-Chemical Themes to cart. $66.41, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.
