Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 271
cular construction of thesubstance in these different states. In a solid, the molecules are close together and are heldfirmly together by a force called cohesion. This force issufficient to keep the molecules from changing their relativepositions, but it allows them to vibrate. In a liquid, the… … Figure 285. — Liquids andSolids in Pipes. In a gas, the molecules are far apart, the force of cohesion is too small to count, and the molecules fly about with perfect freedom, bumping against oneanother and the sides of the con-taining vessel. 307. Gases and Liquids throughPipes. — The fact that…
Physics
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