A text-book on chemistryFor the use of schools and colleges . r; on the other, the elasticforce of the ethereal vapor; they press inopposite directions, and the resulting alti-tude at which the mercury stands expresses,and indeed measures the elastic force of thevapor. Thus, at a temperature of 80°, wa-ter will depress the mercurial column about 1 inch al-cohol about 2 inches, and sulphuric ether about 20lnese numbers, therefore, represent theelastic force of the vapors evolved. In close vessels, from which there isno escape, or from which the escape isgreatly retarded, a constantly accumu-lat
A text-book on chemistryFor the use of schools and colleges . r; on the other, the elasticforce of the ethereal vapor; they press inopposite directions, and the resulting alti-tude at which the mercury stands expresses,and indeed measures the elastic force of thevapor. Thus, at a temperature of 80°, wa-ter will depress the mercurial column about 1 inch al-cohol about 2 inches, and sulphuric ether about 20lnese numbers, therefore, represent theelastic force of the vapors evolved. In close vessels, from which there isno escape, or from which the escape isgreatly retarded, a constantly accumu-lated force is generated when the tem-perature is raised. Thus, if we placesome water in a flask, a, Fig. 33, intowhich a tube, b 6, is inserted air-tightby means of a cork, and bent in theform exhibited in the figure, and dip-Do all liquids expand equally in assuming the vaporous state ?liow may the elastic force of vapors be measured by the barome-ter t What is the principle involved ? What results from heatinga liquid in a close vessel ? Describe Fig. 33 c. Fig. 33.
Size: 977px × 2559px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookde, booksubjectchemistry, booksubjectphysics
