646 Heat Engines, Entropy, and the Second Law of ThermodynamicsFor the entire cycle, ∆Eint, netJ=+−−=162149 246 65 00.. The net work isWQengnetJ JJJJ=−+ ++ =+−=1620246084 30149 0650843...The tables look like:StateT(K)P(kPa)V(cm3)Eint(J)A293100500 125B6731 84062.5287C1 0232 79062.5436D445152500 190A293100500 125ProcessQ(J)output W(J)∆Eint(J)AB0–162 162BC1490149CD0246 –246DA–65.00–65.0ABCDA84.384.30(c)The input energy is Qh=149 J , the waste is Qc=65 0. J , and WengJ=84 3..(d)The efficiency is: eWQh===engJ149 J84 3
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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 .