浙大物化乙期末考试题-2004物理化学乙-考研试题文档资料系列.doc

《浙大物化乙期末考试题-2004物理化学乙-考研试题文档资料系列.doc》由会员分享，可在线阅读，更多相关《浙大物化乙期末考试题-2004物理化学乙-考研试题文档资料系列.doc（4页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、Physical ChemistryTest April 13,2004Chemistry Department of Zhejiang UniversityGrade: 2001 Name .Number12345Total scoreScore1 Fill in the blanks with the most suitable answer (20 scores).(a) The molality and mean activity coefficient for the solution K3Fe(CN)6 is m and, then the activity a= 。(b) In

2、the solution containing 0.1 moll-1 K3Fe(CN)6 and 0.2 moll-1 K4Fe(CN)6, the ionic strength I= 。(c) If the cell Pt|H2(p2)|HCl(b)|H2(p1) |Pt can discharge spontaneously, then p1 p2 。(d) If standard electrode potentials for the following three reactions are E1, E2and E3， Cu2+2e=Cu， Cu+e=Cu， Cu2+e=Cu+，Th

3、en the relationship among them is 。(e) For two cell reactions: (1) H2(g)+Cl2(g)=2HCl(g); (2) 1/2 H2(g)+1/2 Cl2(g)=HCl(g)Gibbs energy changes and electromotive forces for the reactions are G1、G2, E1、E2, then the quantitative relationship between them is G1 G2; E1 E2.2. Try to design a galvanic cell s

4、o that you can calculate standard Gibbs energy of formation and decomposition pressure for AgCl(s), and give calculating process and results according to the following data (20 scores).electrodeCl-/Cl2 Ag+AgCl/Cl- OH-/O2,Pt Ag+/Ag OH-/H2,Pt I-/AgI+Ago1.3595 0.2224 0.401 0.7991 -0.828 -0.1523. For wa

5、ter, Kw is 0.6710-14 (25)，and 1.4510-14 (30)， H+OH- =H2Owhat is H and S for the reaction between KOH and HCl?（20 scores）4. The solution of KCl is electrified with Ag-AgCl(s) electrodes. After a while, 160.24 mg of Ag(s) is formed on the cathode. At the same time, there is the mass fraction of KCl of

6、 1.940410-3 in 120.99 g of the solution on the cathode area. If there is the mass fraction of KCl of 1.494110-3 in the original solution, how much is the transference number for K+ and Cl- (20 scores)?a.5. If the concentrations of four metal ions Ag+, Fe2+, Cd2+, Ni2+ and H+ are 0.05, 0.01, 0.001, 0.1 and 0.001 moll-1 (activity coefficient is 1), and the overvoltage of H2 on Ag, Fe, Cd and Ni electrodes is 0.20, 0.18, 0.30 and 0.24 at 298K and standard pressure. When external voltage is increased gradually, what is the sequence of depositing these ions?