1.
v 1. , , 1 HCl 92 .
, DH () .
DH0 = Qp = ‑92 , (‑) , .
1/2H2() + 1/2Cl2() = HCl(), ∆0 = 92 .
, :
H2() + Cl2() = 2HCl(), ∆0 = 184 .
v 2. Al2O3(),
4Al () + 3O2 () = 2Al2O3 (), DH0 = 3340 .
1 , . 2 . : , , - . , 1 ( ):
2Al () + 3/2O2 () = Al2O3 (), .
:
v 3. (. ) . .
DH0 , / | |
H2O () | -242 |
H2S () | -20 |
H2Se() | +85 |
H2Te () | +154 |
: , .
H2Te () H2Se () H2S () H2O ().
v 4. , DH1, DH2 DH3, .
1) () + O2() = CO2(), DH1;
2) () + 1/2O2() = CO(), DH2;
3) CO() + 1/2O2() = CO2 (), DH3.
, . . (1) (2) (3), ..
:
v 5.
2H5OH() + 3O2() = 22() + 3H2O().
C2H5OH() | O2() | CO2() | H2O() | |
DH0, / | ‑278 | ‑394 | ‑242 |
:
v 6. , ( ) 1 . .
|
|
DH0 , / | |
CaO() 2() ()2() | 635 286 987 |
:
CaO() + 2() = ()2().
, :
, .. . Q = DH0 = ‑66 1 . , 1 :
, 1 ,
: 1 1175 .
1. , DH0 (1) (2): , CaCO3() FeO() . .
1) CaO() + O2() = CaCO3(), DH0 = ‑180 ;
2) Fe() + 1/2O2() = FeO(), DH0 = ‑272 .
2. , , Hg2 K2, , (/): ‑91, ‑360.
3. , , 1 242 .
4. Fe3O4() + C() = 3FeO() + O(), , , - .
DH0, / | |
Fe3O4() C() FeO() O() | ‑1117 ‑263 ‑111 |
5. CH3OH(),
CH3OH() + 3/2O2() = CO2() + 2H2O(), DH0 = ‑726,5 /.
.
DH0, / | |
O2() CO2() H2O() | ‑393,5 ‑285,8 |
2.
v 1. , DS :
) 2NO() + O2() = 2NO2();
) CO2() = CO2();
) 2CH3OH() + 3O2() = 2CO2() + 4H2O().
() (), , (DS<0). () ( ), (DS>0).
: ) DS<0; ) DS>0; ) DS<0.
v 2.
CaO() + CO2() = CaCO3() .
.
/ | S0, /(.) | , / | |
CaO() CO2() CaCO3() | ‑ 635,2 ‑ 393,6 ‑ 1207,1 | 39,8 213,7 92,9 | ‑ 603,9 ‑ 395,5 ‑ 1129,0 |
1.
.
2. , , .
.
, .
|
|
1. , ,
4NH3 () + 3O2 () = 2N2 () + 6H2O ();
2NO () + O2 () = 2NO2 ();
C () + H2O () = CO () + H2 ().
2. DS0
2H4() + 3O2() = 2CO2() + 2H2O().
, /(.) | |
2H4() O2() CO2() H2O() | 219,4 205,0 213,2 188,7 |
3. DG0
MgCO3() = MgO() + CO2().
DG0, / | |
MgCO3() MgO() 2() | -1028 - 569 - 395 |
4.
CCl4() + 4HCl () = H4() + 4Cl2(),
= +434 / D = - 117 /(.). .