51. Fe2O3 ?
52. II-? ∆G298 (IV) MgO: () + 2() = 3(), , Mg.
53. ∆0298, ∆S0298, ∆G0298 ()= () + 2()
MgCO 3 3.
54. : ) () + 2() = (),
) 123() + 3SO3() = A12(SO4)3().
55. (IV) 1000 .
56. , (III)
Fe2O3() + () = 2Fe() + 2(), ∆Ͱ298 = 346 .
57. , : 2(), H2S(), H2Se() 2()? ∆G0298 2 + = 2, , S, Se, .
58. r23() + () = 2r () + () 1500? .
59. ,
41() + 2() ⇄ 22() + 212(), ∆H0298= − 114,4 ,
. , , ∆G0 = 0.
60. , 500 2NO() + 2() ⇄ 2NO2(). , ∆G0298 ∆G0500 .
61. ,
N2() + 2() ⇄ 2NO(), 3 .
62. 20 2 . : ) 0 ; ) 50? 2.
63. , 2SO2 + 2 ⇄ 2SO3, , , ? ?
64.
4NH3() + 52() = 4NO() + 62().
, : ) ; ) 3 .
65. , 25 . 95, , 2, 3.
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66. ,
2Cu2 ()+ 2() = 4u () ) 30 (γ = 3); ) 2 .
67. Na2S2O3 + 2HC1 = 2NaCl + S + SO2 + 2
CNa2S2O3 =1 / HCl =
2 /. , 3 /, 6 /?
68. 2 + l2 ⇄ 2HCl 25 200, , 25 ?
69. 10 2 . 40 10, , 20 0,08 / .
70. 50 2 15 . 70, 3?
71. , : 2() ⇄ 2 () + (), ∆H0298= 173,0
MgCO3() ⇄ MgO()+2(), ∆H0298 = 385,0
) ; ) . .
72. , 2N2() ⇄ 2NO()+2(), ,
[NO2] = 0,06 /, [NO] = 0,24 / [2] = 0,22 /. ?
73. :
2r() ⇄ 2() + r2(), ∆H0298= 72,5 ;
3Fe() + 42() ⇄ Fe3O4(), + 42(), ∆H0298 = 152,3 .
, .
74.
4() + 22() ⇄ 2() + 22()
. ?
75.
N2 + 2 ⇄ 2NO 4,110 -4. 2, N2 NO 0,10 0,05 /.
76.
2NO + 22 ⇄ N2+ 2, 3 ? .
77.
N2+ 3H2 ⇄ 2NH3 (/): [N2] = 0.3; [2]=0.9; [NH3]=0.4. , , 5 . ?
78. () + 2() ⇄ 2C0(), ∆Hº298 = +119,8: ) 2(); ) (); ) ; ) ; ) ; ) ()?
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79. 15() ⇄ 13() + 12(), ∆Hº298= +92,6 .
: ) ; ) ; ) , 15?
80. :
) aCO3() ⇄ CaO()+2(); ) ()+2() ⇄ CO2()+2()
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