1.
CS2() + 32() = CO2() + 2S2(), .
.
(D0..) , :
D0 .. = SD0 . SD0 ..
2 (), , : D0 (CS2) = 115,30 /, D0 (CO2) = 393,5 /, D0 (S2) = 296,9 /.
:
D0 .. = (D0 298(CO2) + 2 D0 298(S2)) (D0 298(CS2) + 3 D0 298(O2)); D0 298 0,
D 0.. = (D0 298(CO2) + 2 D0 298(S2)) D0 298(CS2)= 393,5 / +2 × (296,9 /) - 115,30 / = 85 /
D0 ..> 0, , D0 ..< 0, .
.
2. 㳿 ó
4NH3() + 5O2() = 6H2O() + 4N()
.
. ó (G) , 㳿 ó (DG..)
DG0.. = SDG0. SDG0..,
DG0. ó , DG0.. ó .
ó . :
DG0298,.. = (6 DG0298 (2) + 4 DG0298 (N)) (4 DG0298 (NH3) + 5 DG0298 (2));
DG0298 (2) = 0,
DG0298,.. = (6 DG0298 (2) + 4 DG0298 (N)) 4 DG0298 (NH3).
2 DG0298, :
DG0298,.. = 6 × (228,8) + 4 × (86,89) 4 × (16,64) = 959,48 .
DG.. . , 㳿 ó . DG.. > 0, , DG. = 0, . DG0298,.. < 0, , .
1.
H2O(p) + SO3() H2SO4(p) | |
CaCl2(p) + Na2CO3(p) CaCO3(m) + NaCl(p) | |
Na2SO4(p) + H2O(p) H2SO4(p) + NaOH(p) | |
Fe(OH)3(m) + HCl(p) FeCl3(p) + H2O(p) | |
SnCl2(p) + 2FeCl3(p) 2FeCl2(p) + SnCl4(p) | |
8HI() + H2SO4(p) 4I2(m) + H2S() + 4H2O(p) | |
NO2() + H2SO3(p) H2SO4(p) + NO() | |
Ca(OH)2(k) + CO2() CaCO3(k) + H2O(p) | |
SO2() + H2O(p) + NO2() H2SO4(p) + NO() | |
Fe(k) + H2SO4(p) FeSO4(p) + H2() | |
CaCO3(k) CaO(k) + CO2() | |
Fe(k) + 4HNO3(p) = Fe(NO3)3(p) + NO() + 2H2O(p) | |
CaCO3(k) + 2HCl(p) CaCl2(p) + H2O(p) + CO2() | |
I2(m) + H2SO3(p) + H2O H2SO4(p) + 2HI() | |
Zn(m) + HCl(p) ZnCl2(p) + H2() | |
C2H5OH() C2H2() + H2O (n) | |
H2S() + CO2() H2O(n) + CS2() | |
CH4() + H2S() CS2() + H2() | |
NO2() + H2O(p) HNO3(p) + HNO2(p) |
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