Ics Reference Library

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ISBN 13 : 9781332183104
Total Pages : 546 pages
Book Rating : 4.1/5 (831 download)

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Download or read book I. C. S. Reference Library written by and published by . This book was released on 2015-08-04 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from I. C. S. Reference Library: A Series of d104books Prepared for the Students of the International Correspondence Schools and Containing in Permanent Form the Instruction Papers, Examination Questions, and Keys Used in Their Various Courses; Properties of Gases, Mine Gases, Mine Venti 1. Matter is the substance of which all things consist. It may be defined as anything that possesses weight or that occupies space. There are three divisions of matter: masses, which are bodies of matter appreciable to the senses; molecules, which are the smallest particles of matter that a body can be divided into without losing its identity; atoms, which are elementary, or chemically indivisible, portions of matter. Atoms unite to form molecules and molecules unite to form masses. Matter may exist as a solid, a liquid, or a gas. 2. Natural Forces. - The force that binds atoms together to form a molecule is a chemical force called affinity. The force of attraction that binds molecules together to form mass is a molecular force called cohesion. Besides these forces of attraction, the molecules of all matter are acted on by an opposing force, called repulsion, which tends to drive them apart. The force of repulsion, unlike that of attraction, is not inherent in the mass, but is an induced or applied force that is largely the result of heat or the temperature of the body. 3. Mass and Volume. - The mass of a body is the matter that it contains, and is proportional to the weight of the body; thus, a body weighing 2 pounds contains twice as much matter as a body weighing 1 pound. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.