588 Heat and the First Law of ThermodynamicsP20.37WPVPVVPnRTPPsw=−−+LNMMOQPP∆bgafejej18 0106. g1.00 g cmcm m333WQmLEQWv⋅+×FHGIKJ==×==+ =10083143731013 1018 03100018040737 65......molJ K molKN mg10 g mkJkg 2.26 10 J kgkJkJ2636int∆P20.38(a)The work done during each step of the cycle equals thenegative of the area under that segment of the PVcurve.WW W W WVVPVVPVDAABBCCDiiii i iii=+++−+ −−+ = −303304(b)The initial and final values of Tfor the system are equal.Therefore, ∆Eint=0 and QWPV=4.(c)VnRTi= −444 1 00 8 314 2739 08.afafafkJFIG. P20.38P20.39(a)PVP VnRTf f=⋅=×200300499 103mol 8.314 J K molKJafVnRTPVnRTPViiffi××130041033...J0.400 atmJ1.20 atmm3(b)dVnRTVVfiFHGIKJ×FHGIKJ=+zln.ln.135483kJ(c)∆Wint== +0Q. kJP20.40∆∆EEABCACint, int, =(conservation of energy)(a)∆WABCABCABCint, (First Law)QABC=+=8005001 300J JJ(b)VCDCCD=− ∆, ABCD
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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 .