Martin, Louis Adolphe, 1880- · New York, J.Wiley & Sons, Inc.: [etc. etc.] · leaf 39
rk Done by the Adiabatic Expansion of Air. — Air expands adiabatically when its entropy remains constant.In this case the gas neither receives nor emits heat. Thelaw of adiabatic expansion is pv = constant wherew = 1.4. In practice the conditions for adiabatic changeare seldom realized and then n… … In the equation (i + tan /3) = (i + tan a) assume a and compute /S.Then as in Fig. 17lay down the anglesa. and /3 from theaxes of V and p re-spectively as shown;now starting fromany known point(di, ^1) on the re-qiiired curve drawlines at 45° as indi-^° ^^ cated to locate an- other point on the…
Mechanics
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