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1、1、At300K,1moleidealgasexpandsfromp=1Oxp°top=p0isothermallyandreversiblycalculate(1)Calculatetheq,w,AHm,AUm,AGm,AFmandASm;(2)Ifthegasexpandsisothermallytoavacuumuntilthepressurereachesp=p°,calculateq,w,AHm,AUm,AGm,AFmandASm.2、Calculatetheequilibriumvapourpressure(atm
2、)ofsodiumforanaluminummeltcontaining0.005mol%sodium(Na).Theactivitycoefficientofsodiuminaluminumis320andthevaporpressureofpuresodiumat750°Cis0.23atm.3、At413.15K,thevaporpressureofpureC6H5C1andC6H5Brare125.238kPaand66.104kPa.Giventhatthetwopureliquidsaremixedandformi
3、dealsolution.Ifasolutionformedbythetwopureliquidsboilsat413・15K、101.325kPa,pleasecalculatethecompositionofthesolutionandthevaporaboveit.4、GiventhatwhenaspecieAinabinarysolution,itsvaporpressurevarieswithitsconcentrationinthepatternillustratedbelow.Makeatabletoindica
4、tetheactivity,activitycoefficientandchemicalpotentialofAindifferentconcentrationsectionsI、IIandIII,usingitspuresubstanceasstandardstate・£0ppnsspdodc>III15、At300K,thevaporpressureofliquidAandliquidBare37.33kPaand22.66kPa.When2molesofAand2molesofBaremixedtoformasoluti
5、on,thevaporpressureabovethesolutionis50.66kPa,andthemolarfractionofAinthevaporis0・60.Giventhatvaporscanbetakenasidealgases.©CalculateaA(r)andaB(R)inthesolution,②*and③AmixG④Ifthesolutionisanidealsolution,whatisthevalueofAmixG,d?⑤WhatisthevalueofAmixGcxofthissolution?
6、6、Thevariation,withcomposition,ofGEforFe-Mnalloysat1863Kislistedbelow:XMn0」0.20.30.40.50.60.70.80.9GmE,Joules395703925105411001054925703395a.IstheprocesstoformFe-Mnalloyat1863Kanexothermiconeoranendothermicone?b.Doesthesystemexhibitregularsolutionbehavior?c.Calculat
7、eand“爲atXMn=0.6;d.Calculate△加G〃，atXMn-0.4;45390Inpe(atm)=——=1.27InT+23.93e.CalculatethepartialpressuresofMnandFeexertedbythealloyofXMn-0.27、MeltsinthesystemPb-Snexhibitregularsolutionbehavior.At473°C,aPb=InpMn(atm)=-33440T-3.02InT+37.680.055inaliquidsolutionofXPb=0
8、」.Calculatethevalueofa)PbSnforthesystemandcalculatetheactivityofSnintheliquidsolutionofXSn=0.5at500°C.8、WithrespecttotheEllinghamdiagram,a
