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1、第二章四、计算题1.在常压和0℃下,冰的熔化热是334.4Jg-1,水和冰的质量体积分别是1.000和1.091cm3g-1,且0℃时水的饱和蒸汽压和汽化潜热分别为610.62Pa和2508Jg-1,请由此估计水的三相点数据。解:在温度范围不大的区域内,汽化曲线和熔化曲线均可以作为直线处理。对于熔化曲线,已知曲线上的一点是273.15K,Pa;并能计算其斜率是PaK-1熔化曲线方程是对于汽化曲线,也已知曲线上的一点是273.15K,610.62Pa;也能计算其斜率是PaK-1汽化曲线方程是解两直线的交点,得三相点的数据是:Pa,K2.试由饱和蒸汽
2、压方程(见附录A-2),在合适的假设下估算水在25℃时的汽化焓。解:由Antoine方程查附录C-2得水和Antoine常数是故Jmol-1六、证明题各个公司可以自行设计各种单据,并将单据内容与结果列示在“实验过程中使用的表格”中,可以注明单据设计人与单据使用效果。SafetySupervisionBureauoftheparty'smasslineeducationalpracticereformprogramtopromotetheimplementationoftherectification,establishanewsystemtowo
3、rk,inaccordancewiththerequirementsofthecountyPartycommittee,CountySafetySupervisionBureauleadershipcheckoutthe"fourwinds"thereareproblems,makethefollowingimplementationoftherectificationprogram.First,theguidingideologyandbasicprinciplesof(a)guidethought:theparty'seighteen,the
4、eighteensessionofthesecond,theThirdPlenarySessionofthespiritasaguide,conscientiouslyimplementthespiritofgeneralsecretaryXiJinping'simportantspeechseries,instrictaccordancewiththe"lookinthemirror,dressup,washbath,curetreatment,thegeneralrequirements,focusonmaintainingtheparty'
5、sadvancednatureandpurity,closelylinkedtothepeopleandpragmaticcleanthemainAndlookinthemirror,dressup,washbath,curetreatment,thegeneralrequirementsof"focustosolvethefourwindsissue,thepriorityamongprioritiesrectificationasfirmlyputthefourwinds,thesystemconstructionisthefundament
6、alstrategyofthecomprehensivewipeouttherootcause,inordertopromotetheimplementationoftherectificationandtheestablishmentoftheworktoensurethateducationalpracticefromstarttofinish,goodtodogood,credibility,benefitthemasses,promotethesustainedandhealthydevelopmentoftheworkofproduct
7、ionsafetyscience(two).Basicprinciples:1,adeepunderstandingofthebasicprinciplesofcarryingouttheparty'smasslineeducationalpractice:oneisthecentraladheretopositiveeducation,twoistoinsistoncriticismandselfcriticismThree,adheretothepragmatic,fouristoadheretoguidance,adheretothelea
8、dership.Thefiveis2,combinedwiththeactualworkoftheunit,oneistoadheret