Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 392
iquid sulphurous acid in the same manner a great degree of cold, — 50° C,is obtained. At this temperature ammonia may be liquefied. By rapidlyevaporating liquid ammonia under the air-pump in the presence of sulphuricacid, a temperature of —87° is attained, which is found sufficient to… … Fig. 372 non-permanent gases, by effecting the liquefaction of oxygen, and othergases which it was supposed could not be condensed. This has beenaccomplished by means of powerful material appliances directed withgreat skill and ingenuity. The critical temperature of these gases ismostly below -…
Physics
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