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. 1908 Excerpt: ...in which all the data have been determined experimentally. From the equation it is clear that if either L or vv--Vl vanishes at the critical point, the other must vanish also. Determination of the Heat of Vaporization.--The heat of vaporization of a liquid may either be determined experimentally or it may be calculated ...
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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. 1908 Excerpt: ...in which all the data have been determined experimentally. From the equation it is clear that if either L or vv--Vl vanishes at the critical point, the other must vanish also. Determination of the Heat of Vaporization.--The heat of vaporization of a liquid may either be determined experimentally or it may be calculated by means of the formula--if the values of-and vv--Vl are known at the absolute at temperature T. The latter method has been very frequently employed, especially at high temperatures, at which the direct determination is attended with great difficulties. The earliest experimental determination of the heat of vaporization of water was made by Black; but the method he employed was not capable of giving accurate results. Afterwards, at Black's suggestion, Irvine, and later Watt, employed the method of condensation in a calorimeter,1 the steam from a boiler being passed into a calorimeter, and the rise of temperature and weight of water formed by condensation being ascertained; and Watt obtained the value 533 calories at 100. The researches of Regnault were far more complete; he employed the same method, but worked with very large quantities and with a much more elaborate apparatus, and he investigated the various sources of error with great care. He also made determinations over a wide range of temperature, not only for water, but for a number of other substances. For water Regnault obtained the values 606-5 at 53-5 at 100, and 464:3 at 200. 1 Vide Preston's "Theory of Heat" for a full account of the earlier experiments. The chief error to be guarded against is the loss or gain of heat by the calorimeter, which may be caused by radiation, convection, or conduction while the experiment is proceeding. 1. Every object in a room is constant...
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Add this copy of Stoichiometry to cart. $21.42, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Stoichiometry to cart. $31.73, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Stoichiometry to cart. $52.72, new condition, Sold by Booksplease rated 4.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2022 by Legare Street Press.
