单词 | joule-kelvin |
释义 | Joule-Kelvinn. = Joule-Thomson n. ΘΚΠ the world > matter > chemistry > physical chemistry > gaseous phase > [noun] > gas > properties > Joule-Kelvin Joule-Thomson1899 Joule-Kelvin1909 1909 Cent. Dict. Suppl. at Effect Joule-Kelvin effect. 1916 I. B. Hart Student's Heat xvi. 320 The liquefaction of hydrogen is achieved as a result of the fact that at 200 atmospheres and a temperature of −200° C. the Joule-Kelvin effect changes from a heating to a cooling. 1937 M. W. Zemansky Heat & Thermodynamics xiv. 246 One of the most important commercial applications of the Joule-Kelvin effect involves the transition of a liquid at room temperature and at high pressure (15 to 20 atm) into a mixture of liquid and vapor at a temperature about 30°C colder. 1965 W. C. Reynolds Thermodynamics viii. 216 Show that the Joule-Kelvin coefficient for a perfect gas is zero. This entry has not yet been fully updated (first published 1976; most recently modified version published online March 2022). < n.1909 |
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