Creighton, William Henry Paul, 1859- · New York, J. Wiley & sons; [etc., etc.] · leaf 229
gree which is transferred to another body or trans-formed into another form. As we must resort to calculus in PV calculations when thepressures vary according to some law, so we must resort to thesame instrument if the temperatures vary in the <j>T diagram.As work is made up of the sum of the… … a Kb pdv d\i Fig. 113. changes T is kept constant as P was kept constant in the work diagram. Hence (Fig. 115) we have dQ = Tdcf> or d<p = -7p. We can easily integrate this expression, when we can express Q in termsof T. It is essential to remember that T is absolute temperature. 1 1 T ii 1 i…
Steam-engines · Heat-engines
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