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: ...by any appropriate method. But in default of other reliable data we are forced to evaluate them from the fusion points of the system under consideration. And this can be accomplished in the following manner. If Hi and ns represent the number of gramme molecules of C6H60 and (C6H6O)3 respectively, then -, + 3 n, =.tf, . ...
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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: ...by any appropriate method. But in default of other reliable data we are forced to evaluate them from the fusion points of the system under consideration. And this can be accomplished in the following manner. If Hi and ns represent the number of gramme molecules of C6H60 and (C6H6O)3 respectively, then -, + 3 n, =.tf, ..............................(8) and if we put -- + -. = 91, .............................. (9) we have When the fusion point T is determined, 6 is given by (6), and 3i can be calculated. From (8) and (9) Putting these values in (10) and (11) C ' Hence the equation (2) can be written _ (7, 4 (#-30(+91)' --In this way the dissociation constant $ can be evaluated from experimental date. It has been found to decrease rapidly with a felling temperature. The relation between the dissociation constant deduced in this way and the temperature can be represented tolerably well by an equation of the form in which the constants Q, and SC are to be determined empirically. When the values of D. and X thus empirically found are inserted in (7), the equation was found to express the fusion curve of naphthalene with tolerably close approximation as will be shown in 4. 3. The Fusion Curve of Phenol. As phenol consists essentially of two chemical species, it is necessary to determine to which of them the solid phase stands in immediate relationship. At the melting point of pure phenol, (C6H6O)3 preponderates greatly over C6H6O; hence it will be more natural to suppose that in the action of melting and solidifying the transformation takes place between the solid phase ond (C6H6O)3 in the liquid. The theory of the ideal solution then furnishes the following relation: (13) in which T is the fusion point, T the hypothetic...
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Add this copy of Collection of Papers Contributed on the Occasion of the to cart. $68.01, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Santa Clarita, CA, UNITED STATES, published 2011 by Nabu Press.
