A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 510
in Fig. 450.If any part of an isothermal line becomes horizontal, it may beinferred that latent heat is being imparted to, or removed fromthe substance, which accordingly is undergoing evaporation orliquefaction. It will be noted that liquefaction may be obtained at13-1° C. with a pressure of about… … I3?IC. V OL Fig. 450.— Isothermal lines for C02. 486 HEAT CHAP. Critical Temperatures and Pressures.* Substance. Critical temp., Critical pressure, C. atmospheres. Hydrogen - -23-1-5 20 Oxygen -118 50 Air -140 39 Water - 365 194-6 Carbon dioxide - 31-1 73 Ammonia 130 115 Sulphur dioxide - 155-4…
Physics
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