650 Heat Engines, Entropy, and the Second Law of ThermodynamicsP22.45∆SnRVVRfi=FHGIKJ==lnln.2576JKThere is no change in temperature .FIG. P22.45P22.46∆RVVRfi=FHGIKJ=ln.ln00440 22bgaf∆S00880831420507..ln.afJKFIG. P22.46P22.47For any infinitesimal step in a process on an ideal gas,dEdQ dWint=+:dQdEdWnC dTPdVnC dTnRTdVVVV=−=+=+intanddQTnCdTTnRdVVVIf the whole process is reversible,∆SdQTnCdTTnRdVVnCTTnRVVrifVifVfifi+FHGIKJ=FHGIKJ+FHGIKJzzlnlnAlso, from the ideal gas law,TTPVfiffii=∆S=⋅LNMOQPFHGIKJ+⋅FHGIKJ=100328314200 00400
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .