物理化学期末考题答案(A)2004-01-09一、填空(20分)1.升高,降低2.∆H(<)Qr3.VhmkTqt2/322⎟⎠⎞⎜⎝⎛=π;σπσ228hIkTTqr=Θ=r;TvvTveeq2/12/Θ−Θ−−=或Tvveq/011Θ−−=4.位置和动量;位置与时间5.(p凸)>(p平)>(p凹);6.∆H(<)0,∆G(<)0,∆S(<)07.过饱和蒸气,过热液体,过冷液体,过饱和溶液;新相难以生成;加入新相种子8.102.765kPa9.Ea=Ec+(1/2)RT,在温度不太高,Ec>>(1/2)RT时10.1;311.(1)化学性质,数量;(2)到达平衡,平衡;(3)不改变,也不会;(4)选择12.(1)外扩散,(2)内扩散,(3)吸附,(4)反应,(5)解吸,(6)内扩散,(7)外扩散;扩散,活化13.胶粒带电,布朗运动,溶剂化作用14.{(BaSO4)mnSO4-(2n-x)Na+}x+┆xNa+115.哈密顿算符;本征方程;本征值;本征函数二、(10分)1.355.029810381.1/10426.0//)(//1232011=====×××−∆−−−−−+−−++eeeeennkTkTkTkTiiiiiiεεεεε2.离域子:TUqNkSTUqNkSNkTUNqNkSvvvrrrttt000000lnlnln+=+=++=定域子:Sr,Sv与离域子相同,TUqNkSttt00ln+=三、(8分)12432mmolmS1036.71005.01068.3−−−⋅⋅×=××==cΛκ124443mmmmolmS1072.390109.401082.349)COOCH()H(−−−−−∞+∞∞⋅⋅×=×+×=+=ΛΛΛ01884.01072.3901036.744mm=××==−−∞ΛΛα52210809.11)01884.01(01884.005.0)1(−ΟΟ×=×−×=−=ccKαα2四、(15分)解:(1)阳极:H2(100kPa)─→2H+()+2e+Ha-阴极:Ag2SO4(s)+2e-─→2Ag(s)+()-24SO−24SOa电池反应:H2(100kPa)+Ag2SO4(s)─→2H+()+2Ag(s)+()+Ha-24SO−24SOa1ΟΟmolkJ01.126653.09648522−⋅−=××−=−=∆FEGm860.50298314.8100.126ln3Οm=××=∆−=ΟRTGK2210225.1×=ΟK(2))SOH(ln242aFRTEE−=Ο335.215.298314.8)623.0653.0(964852)(2ln42SOH=×−×=−=ΟRTEEFa334.10SOH=a4213/13/1SOH33SOHkgmol112.37.0/)334.10(/)()/(4242−±Ο±Ο±±±⋅===∴==γγbabbbaaQ而{}bbbbbb3/13/123/1SO2H4)2()(24=×=⋅=−+±13/13/1kgmol960.14/112.34/−⋅===±∴bb(3)题给原电池的E�就是E�(Ag2SO4/Ag)3{}5424210106.1956.405926.0/)/AgAg()/AgSOAg(2lglg205916.0)/AgAg()/AgSOAg(−+ΟΟ+ΟΟ×=−=−=∴+=spspspKEEKKEE五、(15分)解:(1)cA0的↓一倍,t1/2↑一倍,t1/2∝1/cA0,∴是二级反应,有:011AAcckt−=反应掉cA0的1/3时,cA=(2/3)cA0A00A0A0AA1411)3/2(121111ccccctk=⎟⎟⎠⎞⎜⎜⎝⎛−=⎟⎟⎠⎞⎜⎜⎝⎛−=继...