Chap7(exercise) - 1 .. 298.15K .... : Cu2+...

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Unformatted text preview: 1 .. 298.15K .... : Cu2+ +2e– →Cu E1 = Cu 0.337V; Cu+ +e– →Cu E2 = 0.522V, . Cu2+ 0.337V; Cu +e– →Cu+ . E3 = +e 2 .. Cu2.+2e . → Cu . EΘ=0.34V .. 1/2Cu Cu → 1/2 Cu2.+e . . EΘ= 1/2 Cu . 3. 25°C ....... Ag+(a=0.05) . Ni2+(a=0.1) . H+ 3. (a=0.01) ...... H2 . Ag . Ni ........ 0.20V . 0.24V . E (Ag+/Ag)= 0.799V . E (Ni2+/Ni)= 0.250V ................................ . 1 . Ag → Ni → Ag ... H2 Ag Ag . 2 . Ni → Ag → Ni ... H2 Ni . 3 . Ag → Ni → Ni ... H2 Ni 4. ................ 4. 2FeCl3 + SnCl2 = SnCl4 + 2FeCl2 2FeCl SnCl 2KMnO4 +10FeSO4+8H2SO4= 2KMnO +10FeSO 2MnSO4+5Fe2(SO4)3+K2SO4+8H2O 2MnSO ................................... ................................... . 1 . E(MnO4-/Mn2+)>E(Fe3+/Fe2+)>E(Sn4+/Sn2+) . 2 . E(Fe3+/Fe2+)>E(MnO4-/Mn2+)>E(Sn4+/Sn2+) . 3 . E(Sn4+/Sn2+) > E(MnO4- /Mn2+) /Mn >E(Fe3+/Fe2+) 5. .... Cu ....... CuSO4 ................... .... . 1 . ........... . 2 ............ ............ . 3 . ........ ........ . 4 . ........ ........ 6 ..... 298K . pΘ ............. QR = -100J ........ ........ . rHm ... . 1 . = 100J . 2 . = − 100J . 3 .. 100J 100J . 4 .... 100 J 100 7 ................. E1Θ . E2Θ . . 1 . 1/2H2 . PΘ . +1/2Cl2 . pΘ . =HCl . a=1 . . 2 . 2HCl . a=1 . = H2 . pΘ . + Cl2 . pΘ . ... EΘ .... ... . a . E2Θ = 2E1Θ . b . E2Θ = - E1Θ 8. ....... 300K . pΘ ............... J ................. ....... ......... 3J .......... Ssys . . 1 . .... J⋅ K−1 .... . 2 . ... J⋅ K−1 ... . 3 . ... J⋅ K−1 ... . 4 . .. J⋅ K−1 .. 9. .................. Samb . ................. . 1 . 200 J⋅ K−1 200 . 2 . . 200 J⋅ K−1 . 3 . . 180 J⋅ K−1 . 4 . 180 J⋅ K−1 180 10. 298K ........ . 1 . Cu(s)Cu+(a1) Cu+(a1),Cu2+(a2)Pt . 2 . Cu(s)Cu2+(a2) Cu+(a1),Cu2+(a2)Pt ............. Cu(s) + Cu2+(a2) = 2Cu+(a1), . ..... EΘ .. rGmΘ ...... . 1 .. rGmΘ . EΘ ... . 2 .. rGmΘ ... EΘ .. . 3 .. rGmΘ . EΘ ... . 4 .. rGmΘ ... EΘ .. 1. 0.152V 3.(1) 4.(1) 5.(1) 6.(4) 7. (b) 8.(4) 9.(1) 10.(2) ...
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This note was uploaded on 10/15/2011 for the course ENG 211 taught by Professor Chunleiliao during the Winter '09 term at Tsinghua University.

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