Cooke, Josiah Parsons, 1827-1894 · Boston, Little, Brown and Company · leaf 667
ure;54* 642 CHEMICAL PHYSICS. and by multiplying this by the fraction expressing the relativehumidity, we ascertain the amount which it actually contains.Thus, in the example just given, the total amount of vapor whichone cubic metre of air at 20° can contain is 17.145 grammes.It actually contains… … Fig. 446. of the dew-point. This can be observed with sufficient acciiracy,for most purposes, with a thin silver cup and thermometer, asdescribed above ; but where greater accuracy is required, the ob-servations can be made more rapidly, as well as with greater cer-tainty, with the hygrometer of…
Matter · Heat
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