The Significance Of Changing Atomic Volume, Parts 3-4 (1904) (Paperback)

Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: that capable of being performed by the chemical affinity alone. The result would be a cooling reaction and an excess of free energy. This behavior would not be a contradiction of the second law of thermodynamics, because the law states only that heat cannot of itself do work at constant temperature. Thus the hypothesis of compressible atoms not only is consistent with the ordinary applications of the two laws of energy, but also affords a conceivable picture of the cause of the newly discovered relation oU dA of 3r to Tr- On the basis of the present data it is unprofitable to attempt the calcu- 1 TT 0 A lation of the mathematical relation of -, to 0 .. or to probe further into the mechanism of the change. When more exact data have been obtained, it may well be possible to arrive at more definite conclusions. If the contraction of volume on combination could only be interpreted in the light of accurate determination of the compressibilities involved, it seems reasonable that this contraction might be a more exact measure of the affinity than either the free or the total energy change. The foregoing facts and logic seem to lead to the conclusion that the change of free energy of a process does not really represent the attractive energy at work in the process, unless the heat capacity of the system remains unchanged during the reaction. If the heat capacity diminishes during the reaction, the free energy is less than the affinity, and vice versa. This conclusion is contrary to tho common belief. If warranted, it shows that the free energy change is a no more satisfactory guide to the affinity than is the heat evolved in the reaction, even when no concentration effect is present. The free energy seems to represent rather the remainder left after a resisting energ...

General

Imprint:	Kessinger Publishing Co
Country of origin:	United States
Release date:	2010
First published:	2010
Authors:	Theodore William Richards
Dimensions:	229 x 152 x 4mm (L x W x T)
Format:	Paperback - Trade
Pages:	72
ISBN-13:	978-1-120-92776-7
Categories:	Books > Language & Literature > Literature: texts > Collections & anthologies of various literary forms
LSN:	1-120-92776-5
Barcode:	9781120927767

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