浙江2004-2005學年《物理化學(甲)》(英文)課程期末十開課學院：理學院 考試時間：2005年7月9日, 十：_題序—二三四五六七得分At298K,thestandardequilibriumconstant(K°)forthereaction2H2O(g)=2H2(g)+O2(g)is9.7×10-81,saturatedvaporpressure(PH2O)is3200Pa.CalculateEforthecellPt,H2(g,p°)|H2SO4(0.01mol?kg-1)|O2(g,p°),Pt(10mAt298K，KwforH2Ois1.008×10- forNaOH,HClandmis0.024811,0.042616and0.012645S?m-1?mol-1,respectively.ComputeelectricconductivityforwaterKH2O. (10scores)0.1mol?kg-1ofH2SO4(γ±=0.265)iselectrifiedwiththePbcathodeandthecalomelanodeformingagalvaniccell(Hg-Hg2Cl2/Cl-,=0.2801V)ande.m.f.ismeasuredasE=1.0685V.HowmuchHovervoltageofH2 )onPb （10H2ForthereactionOCl-+ OI-+Cl-,dataareas[OCl-]/mol?m-[I-]/mol?m-[OH-]/mol?m--]/dt/mol?m-3?s-Trytogivetherateequationofthe (10At378.5℃, positionfor(CH3)2Oisorderreaction.Half-lifetime(t1/2)is363minandactivationenergy(Ea)is217.570kJ·mol-1.If75%of(CH3)2O posesat450℃,howmanyminutesareneeded?(10scores)AtconstantTandV,themechanismforthereactionCl2+C7H16=C7H15Cl+HClisasfollows:ClC C C7 Trytodeducetherateequation,expressedby-d[Cl2]/dt.Atwhatapproximation,doesthereaction easecondorderreaction?(10scores) Acapillarytubeof50μmisinsertedintomercury(ρHg=13600kg·m–3),andtheliquidlevelisdecreasedby11.20cm.IfthecontactanglebetweenHgandglassis140o,howmuchissurfacetensionofHg?(10scores)Threeone-dimensionalharmoniesvibratearoundthethreefixedpointsA,B,C.Iftotal