Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 59
ant temperature To, also ac and hd lines of constantentropy ^j and <^o respectively, then the area ahcd represents to scalethe heat-units involved in the change of temperature of unit weightof the substance heated from temperature To to Tj, or cooled from Tjto To. Change of temperature is here… … 0 X Fig. 25. quantity of heat, Q, involved in any cycle of operations, ahcd, is giventhus: Q = (Ti - T,)(<^.3 - <^0 Isothermal lines are lines of constant temperature; adiabatic lines are lines of constant en-tropy. Entropy may also beexpressed on the pressure-volume diagram by…
Steam-engines
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