下该电池反应自发进行，则： A.a=dz B.a<da C.a>az D.a1和a2关系不能确定 6.在统计热力学中，能量零点（基态分子的能量）的选择可影响的热 力学量是 A.G B.S C.P D.Cv 7.电解质使溶胶发生聚沉时，起作用的是与粒子带电符号相 的离子。该离子价数越高，聚沉值越 A.同，小： B.反，小： C.同，大 D.反，大： 8.在无限稀的KC1溶液中，CT的迁移数是0.505，该溶液中K的迁移 数为 A.0.505 B.0.495 C.-0.505 D.1 III.For a certain gas ofA,the non-degenerate ground energy level is regarded as zero and a doubly degenerate excited energy level above the non-degenerate ground state is s.And consider the system of a gas A having only two energy levels separated by an energy s that is equal to the value of kT at T. (1)Write the expression of the molecular partition function ofA (2)Calculate the ratio of population in the two states n/no. IV.The method of the bubble pressure is used to measure the surface tension of the CHOH aqueous solution.The measured most pressures of the C4H9OH aqueous solution and pure water are 0.4217kPa and 0.5472kPa, respectively,at 20C.Given that the surface tension of pure water at 20C is 72.75x10N.m".Calculate the surface tension of the C4H9OH aqueous solution. V.Consider the cell at 298K:Pb(s)I Pb(NO3)2(ap2=1)AgNO3(a=1) I Ag(s) PDF文件使用"pdfFactory Pro”试用版本创建ww,fineprint.com,cn 下该电池反应自发进行，则： A．a1 = a2 B. a1 < a2 C. a1 > a2 D. a1和 a2关系不能确定 6． 在统计热力学中，能量零点（基态分子的能量）的选择可影响的热 力学量是 ： A． G B．S C． P D．Cv 7. 电解质使溶胶发生聚沉时，起作用的是与粒子带电符号相 的离子。该离子价数越高，聚沉值越 。 A．同，小； B．反，小； C．同，大； D．反，大； 8．在无限稀的 KCl 溶液中，Cl- 的迁移数是 0.505，该溶液中 K +的迁移 数为 。 A．0.505 B．0.495 C．- 0.505 D．1 III．For a certain gas of A, the non-degenerate ground energy level is regarded as zero and a doubly degenerate excited energy level above the non-degenerate ground state is ε. And consider the system of a gas A having only two energy levels separated by an energy ε that is equal to the value of kT at T. (1) Write the expression of the molecular partition function of A, (2) Calculate the ratio of population in the two states n1/no. IV. The method of the bubble pressure is used to measure the surface tension of the C4H9OH aqueous solution. The measured most pressures of the C4H9OH aqueous solution and pure water are 0.4217kPa and 0.5472kPa , respectively, at 20℃. Given that the surface tension of pure water at 20℃ is 72.75×10－3N·m -1 . Calculate the surface tension of the C4H9OH aqueous solution. V. Consider the cell at 298K : Pb(s)〡Pb(NO3)2( 2+ Pb a =1)║AgNO3( + Ag a =1) 〡Ag(s) PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn