101. , 50 25 25 + 2 = 23, :
2 + 5/22 = 25; ∆ =1549,0 ;
2P + 2 + 32 = 23; ∆ =1964,8 .
102. : + 2 = ()2 + 16 .
1 , 20% .
103. (II) , :
FeO() + () = Fe() + CO2(); ∆=13,18 ;
() + 1/22() = 2(); ∆=283 ;
2() + 1/22() = H2O(); ∆=241,83 .
104. ? , :
Ca() + 1/22() = (); ∆=635,6 ;
2() + 1/22() = 2(); ∆=285,84 ;
() + 2() = ()2(); ∆=65,06 .
105. ? , :
2() + 1/22() = 2(); ∆=285,84 ;
() + 2() = 2(); ∆=393,51 ;
4() + 22() = 22() + 2(); ∆=890,31 .
106.
+ 2 = 2 + 97,8 (409,2 ).
1 , 12% ?
107. : 222 + 52 = 42 + 22.
∆298, , 1 13,88 (58,07 ) .
108. 22 + 2 1/22 = 22 + 2().
, :
) 1 3 , ;
) 20 .
109. :
Cr2O3 + 2Al = 2Cr + Al2O3.
, 1 ? .
110. 1 2: + 3 = 2 +
2 15 / (62,76 /).
111. 1 818? 49,82 / ( )?
112. (III) :
1) Fe2O3 () + 3CO () = 2Fe () + 3CO2 (), ∆0 = 6,74 ;
2) () + 2 () = 2 (), ∆0 = 94,1 ;
3) () + 1/22 () = (), ∆0 = 26,42 .
113. :
1) ZnSO4 () = ZnO () + SO3 (), ∆H 
= +58,27 ;
|
|
|
2) 2ZnS () + 3O2 () = 2ZnO () + 2SO2 (), ∆H = 211,88 ;
114. ∆H ,
NH3 () + Hl ()= NH4Cl (), ∆H = 176,93 /.
115. 16 2 31,3 . ()2.
116. ∆H Fe2O3,
2Fe + Al2O3 = Fe2O3 + 2Al
80 Fe2O3 426,5 .
117.
SO2 () + 2H2S () = 3S () + 22 ()
234,50 . 2S.
118. KNO3 :
KNO3 () + H2SO4 (P) = KHSO4 () + HNO3() (),
2KNO3 () + H2SO4 (P) = K2SO4 () + 2HNO3 () (). ( ) 1 . 80% (), ∆H 
= 133,90 /.
119.
Hg(ONC)2 = Hg + 2CO + N2, ∆H 
= 364,2 . (..) , 1,5 Hg(ONC)2.
120. , 20 26 (..), ∆H B2O3 () 26 () 1264 +31,4 /. , 1559,88 /?
121.
4NH3 () + 3O2 () = 2N2 + 6H2O (),
∆H = 1528 . NH3 () NH3 
2, NH3 () 34,65 .
122. ∆H ZnSO4, , :
2ZnS + 3O2 = 2ZnO + 2SO2, ∆H = 890,0 ;
2SO2 + O2 = SO3, ∆H = 196,6 ;
ZnSO4 = ZnO + SO3, ∆H = +234,0 .
123. ∆H , (II) (II) :
PbO2 + CO = PbO + CO2
124. , , 12 45,57 , 6,2 - 37 , 168 142 - 160,5 .
125.
4 () + 12 () = 31 () + 1(),
:
1) 4 + 22 = 2 + 22, ∆H = 892,0 ;
2) 231 () + 32 () = 22 () + 22 ()+ 21, ∆H = 1374 ;
3) 22 () = 22 (), ∆H = 571,7 ;
4) 2 () + 12 () = 21(), ∆H = 185,0 .
