Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 268
rization of water. 291. Cold by Evaporation. In order to change a liquidinto vapour, heat is always required. Water placed over aflame is turned into vapour, the heat required being suppliedby tlie flame. If a little ether is poured on the palm of thehand it vaporizes at once. Here the heat to… … Fig. 2S4.—Leslies experiment;freezing water by its ownevajioration. But it is sometimes possible to produce vaporization withoutsupplying heat from an outside source. In this case tlie heatcomes from the liquid itself, which must therefore fall intemperature. Indeed, it is possible, byproducing…
Physics
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