This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ... t' =-16.4, s' =-0.0341, r = 559.2, t = 16.4 F., 62.6 + 16.4 Therefore and T, As = 62.6 + 16.4 124. Throttling of Gases. Joule-Thomson Effect.--For a perfect gas we have di = cpdT; Art. 68 (a) (1) hence the temperature of L perfect gas remains unchanged when the gas is subjected to a throttling process. Actual gases, ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ... t' =-16.4, s' =-0.0341, r = 559.2, t = 16.4 F., 62.6 + 16.4 Therefore and T, As = 62.6 + 16.4 124. Throttling of Gases. Joule-Thomson Effect.--For a perfect gas we have di = cpdT; Art. 68 (a) (1) hence the temperature of L perfect gas remains unchanged when the gas is subjected to a throttling process. Actual gases, however, show some change of temperature when throttled. The classical porous plug experiments of Joule and Lord Kelvin were undertaken for the purpose of estimating the deviation of certain actual gases from the ideal perfect gas. The gases tested were forced through a porous plug and the temperatures on the two sides of the plug were accurately determined. In the case of hydrogen the temperature after passing through the plug was slightly higher than on the high pressure side; air, nitrogen, oxygf n, and carbon dioxide showed a drop of temperature. The ratio of the observed drop in temperature to the drop in AT pressure, that is, the ratio--- is called the Joule-Thomson cc fficient and is denoted by p. According to the experiments of Joule and Kelvin y. varies inversely as the square of the absolute temperature. That is, "= k (2) It may be assumed.that this relation holds good for air, nitrogen, and other so-called permanent gases within the region of ordinary observation and experiment. At very low temperatures it seems probable that p. varies with the pressure also. If an expression for the thermal potential i of a gas or vapor is known an expression for may be obtained by differentiation. Thus let i = p(t, p) (3) be the given equation; by differentiation we obtain For a throttling process i--const., di = 0; hence V dp/; = -, -. dp/ dT v' But df)p= Cp therefore Comparison of the calculated values obtained from (9) with expe...
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Add this copy of Principles of Thermodynamics to cart. $20.57, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Principles of Thermodynamics to cart. $26.00, very good condition, Sold by Between the Covers-Rare Books rated 4.0 out of 5 stars, ships from Gloucester City, NJ, UNITED STATES, published 1932 by Henry Holt.
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3rd revised. Near fine with pencil notes on the front end papers and mild wear/. Please Note: This book has been transferred to Between the Covers from another database and might not be described to our usual standards. Please inquire for more detailed condition information.
Add this copy of Principles of Thermodynamics to cart. $30.01, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Principles of Thermodynamics 3rd Edition to cart. $42.89, good condition, Sold by Redux Books rated 5.0 out of 5 stars, ships from Wyoming, MI, UNITED STATES, published 1920 by JOHNSON REPRINT.
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Good. Good hardcover, no DJ. Covers show edge wear and rubbing. Previous owner's name on end paper, pages show some marking. Binding is tight, hinges strong.; 100% Satisfaction Guaranteed! Ships same or next business day!
Add this copy of Principles of Thermodynamics to cart. $51.40, new condition, Sold by Booksplease rated 3.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2022 by Legare Street Press.
Add this copy of Principles of Thermodynamics to cart. $65.43, very good condition, Sold by RARE BOOK CELLAR rated 5.0 out of 5 stars, ships from Pomona, NY, UNITED STATES, published 1927 by Henry Holt and Company.
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Very Good in boards. Wear to edges of boards. Owner name, address and date to front pastedown. Owner name ink stamp to front pastedown and page edges.; 8vo 8"-9" tall.
