A text-book on chemistry : for the use of schools and colleges . ation a Cooling Pro-cess.— Conduction of Solids.—Difference among differentMetals.—Run fords Experiments. The specific gravity of vapors may be de- Fig. in several ways. The following isthe method of Gay-Lussac : A graduated jar,a, is inverted in a basin of mercury, c, whichrests upon a small furnace. A glass bulb is tobe filled quite full with the liquid under ex-amination, and the quantity introduced is accu-rately weighed. The bulb is now slipped intothe jar, a, and rises to its top. A cylinder, Z>,open at both
A text-book on chemistry : for the use of schools and colleges . ation a Cooling Pro-cess.— Conduction of Solids.—Difference among differentMetals.—Run fords Experiments. The specific gravity of vapors may be de- Fig. in several ways. The following isthe method of Gay-Lussac : A graduated jar,a, is inverted in a basin of mercury, c, whichrests upon a small furnace. A glass bulb is tobe filled quite full with the liquid under ex-amination, and the quantity introduced is accu-rately weighed. The bulb is now slipped intothe jar, a, and rises to its top. A cylinder, Z>,open at both ends, but the lower pressed downinto the mercury, is next placed round a, andthe interval filled with clear oil. The furnaceis now lighted ; the oil and the mercury be-come warm ; the bulb at last bursts, and, as itsvapor depresses the mercury in the graduated jar, its vol-ume may be determined. Thus, knowing the weight ofthe liquid, the volume of its vapor, and the temperature Describe Gay-Lussacs method of determiuing the specific gravity of avapor. E2. 54 SPECIFIC GRAVITY OF VAPORS.
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