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Elements of Chemistry (Volume 1) (Paperback) Loot Price: R420
Discovery Miles 4 200
Elements of Chemistry (Volume 1) (Paperback): John Murray
Elements of Chemistry (Volume 1) (Paperback): John Murray

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Elements of Chemistry (Volume 1) (Paperback)

John Murray

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Loot Price R420 Discovery Miles 4 200

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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: BOOK II., OF REPULSION, AND THE POWERS BY WHICH IT IS PRODUCED. 1 He attractions which arc exerted between the minute particles of matter, are counteracted by certain forces of repulsion, and by these the arrangements and combinations to which the former give rise are modified or subverted. Their operation, therefore, is important in the production of chemical phenomena. Of these repulsive forces, the most general in its agency is the power of Heat, or what chemists denominate Caloric. This power is present in all bodies: it is capable of being increased or diminished, and this increase and diminution are accompanied with corresponding changes in the distances at which the particles of bodies are placed, Galvanism, a principle lately discovered, likewise exerts a repulsive agency, and is even more powerful than heat in subverting chemical combination. With these agents, Light has an intimate connection. Its materiality is indeed more decidedly established, yet still it is doubtful if it exert any chemical affinities; its particles are mutually repellent, and it is not improbable, that in producing chemical changes, it operates by the repulsion it'comjnuni- cates to the particles of bodies. The materiality of all these agents has been maintained. The question, however, as it relates to some of them, is far from being determined, and they arc so far peculiar, that their gravity cannot be ascertained; they can scarcely be procured insulated, nor can their combinations, if they enter into chemical union, be traced. They may therefore, without impropriety of arrangement, be regarded as general forces producing repulsion. CHAP. I. OF CALORIC. Of the sensations we experience, none are more familiar than those of heat and cold. These are excited by bodies applied to ...


Imprint: General Books LLC
Country of origin: United States
Release date: 2012
First published: 2012
Authors: John Murray
Dimensions: 246 x 189 x 7mm (L x W x T)
Format: Paperback - Trade
Pages: 128
ISBN-13: 978-1-4590-4423-4
Barcode: 9781459044234
Categories: Books
LSN: 1-4590-4423-1

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