第五章 氢和稀有气体
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Chapter 5 The hydrogen and rare gas (2010)
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01.;2.;3.;4.;5. ;6..
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0:1.?2.?3.VSEPR ?
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0 5-1 hydrogen1787 61011 kg60001401000~200010 0.9%
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0 1H :1.00727799.9844% 2H(D):2.014720.015% 3H(T):3.0171 1H 3H=1017-18 1 H275% 25% D2 HDTD T2HT H214.0K 20.4K
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1.H+H+ 2.,H -, 3. 4.H3O+ B2H6(LaH2.76)
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0 1. 2. () MH MH2;3. TiH1.73TaH0.78
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1.Ans1, H+ 2. AH H - 3. AH, 4. A A A
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0
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0
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1.() 2.(3); 3.() 4.() 5.() 6. 7.
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0 1. 3000KH2O2 900~1200 K
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2. 3. (I2)4. (nTiO2SrTiO3 WO3)(Pt),, ,
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5. () 6. 20~40
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1. 3400m3 2. 1969PhilipsLaNi52.5102kPa72
0
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a. 150/ b. H2H c. -29~46kJ/molH2
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d. (0.1~1MPa) e. f. g.h.
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1 a. LaNi5 LaNi5-xMx(M=Al,Mn,Cr,Fe,Co,Cu,Ag,Pd,Pt) R0.2La0.8Ni5(R=Zr,Y,Gd,Nd,Th) b. MmNi5(MmCe40% MmNi5-xBx (B=Al,Cu,Fe,Mn,Ga,In,Sn,Cr,Co,Pt,Pd,Ag,Zr)c. MlNi5(MlLa+Nd40%
0
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2 (TiFe,TiFe2)(TiMn1.5,Ti0.9Zr0.1Mn1.7)3 Mg2Ni , Mg2Ni0.75Fe0.25 , Mg2Ni0.75Co0.25, Mg2Ca , Mg2Ni0.9Cu0.1 , Mg2Ni0.75Zr0.25,0
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3.
1
2
3
4
5
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05-2
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1.He(Helium):,1868 1889( N2)1895He 2.Ne(Neon): 1898 Ne 3.Ar(Argon): 1894
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4.Kr(Krypton): 18985.Xe(Xenon): 1898 Xe6.Rn(Radon): 1900 1902 1908
0
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1. . : N2O2ArCO2NeHeCH4 KrN2OH2XeO3
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0 (%) (%) (Tkg)N2 78.09 75.51 3864800()O2 20.95 23.15 1184100Ar 0.93 1.28 65500CO2 0.03 0.046 2330Ne 1.810-3 1.2510-3 63.6He 5.210-4 0.7210-4 3.7CH4 2.210-4 1.210-4 6.2 Kr 1.010-4 2.910-4 14.6N2O 1.010-4 1.510-4 7.7H2 0.510-4 0.0310-4 0.2Xe 0.0810-4 0.3610-4 1.8O3 0.0110-4 0.3610-4 3.1
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2. P2255-3 He Ne Ar Kr Xe Rn
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3.
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04. He 2.2K NeArKr,Xe Rn
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1962(N.Bartlett)Xe+[PtF6]-,
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+I- Xe+I2+2F- 21 +H2 Xe+HF K=8.79104 XeF2 +H2O Xe+1/2O2+2HF +IF5 IF7+Xe +F2 1.43103 +2H2 Xe+4HF +4Hg Xe+2Hg2F2 1:5 +Xe 2XeF2 Xe+F2 6atm,623K XeF4 +2SF4 2 SF6 +Xe K=1.07 108 +H2O XeO3+Xe+O2+HF +F2 0.994 +H2O XeOF4+2HF 750atm,523K +3H2O XeO3+6HF K=1.01 108 XeF6 +MF MXeF7 M2XeF8+XeF6 + SiO2 XeOF4+SiF4
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,XeF2+OH- Xe+O2+F-+H2O XeF4+OH- HXeO4-+Xe+O2 +F-+H2O OH- XeO64-+Xe+O2+H2O XeF6+OH- XeO64-+Xe+O2 +F- +H2O
XeOF4
+XeF6 XeF4 +H2O XeO3 O3,OH- XO64- C,H2SO4 XeO4 +OH- OH- H+ HXeO4-
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1.A A 2. 3. 4. 5.H4XeO4 0
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6. 7.VSEPR 8.VSEPR 9. 10. XeF6147
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1. a. b. c. d. 2. a. b. c. d.3. a. b. c. d. 4. a. b. c. d.s5.XeF4 a. 8 b. 10 c. 12 d.14
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06.VSEPR5 a. SO2 b. XeF2 c. PCl3 d.XeO3 7.XeO4 a. b. c. d. 8.VSEPR a.PF5 b.AsO43- c.XeF4 d.BF3 9. a.2-8-8 b.2-8-18-18-1 c.2-8-18-18-8 d.2-8-18-18-8-2 10. a. b. c. d.
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0 VSEPR XeF2 XeF4 XeF6 XeOF4 XeO3 XeO4 XeO64-
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