1. , 65 370 (25)2 , 90 75 .
. , 0 , 90 ; Δ , Δ = 90 75 = 15 ; χ , .
: . χ, , :
0,167n + 0,167n0 = n; n 0,167n = 0,167n0 0,833n= 0,167n0 n = 0,2n0.
m : ,
.
, , : (65) = 94 /; (25)2 = 74 /; .
: m(C6H5OH) = 94 .
2. 15 %- 37.
.
Δ = km,
Δ = (-) (2); m ,
.
, 100 15 85 , (37) = 60 /,
.
, (2) = 373 ; k (2) = 0,520:
(-) = km + (2) = (0,522,94) + 373 = 374,53 .
: 374,53 .
3. , , , (%): 39,34; 8,20; 52,46. , 0,2 26 , 0,3180 , . .
. 2- : , .
kK(C6H6) = 5,120
.
:
; ; . n ÷ n ÷ nS = 3,28 ÷ 8,20 ÷ 1,64 = 2 ÷ 5 ÷ 1 25S.
(-): (25S) = 122 + 51 + 32 = 61 / 2 (-). , , : 410S2.
: 410S2.
4. , , 20% 5% .
|
|
. , -: π = RT, π ; ; , R (R = 8,31 3/).
π(6126) π(25) μ = m/(MV), μ: m = ωVρ
μ = = .
, , (6126) = 180 /, (25) = 46 /, , , ρ(6126) = 1,081 /; ρ(25) = 0,990 /:
μ (- 6126) = = 1,20 ;
μ (- 25) .
, . RT .
μ(- 6126) > μ(- 25), π(- 6126) > π(- 25), , .
: , π(- 6126) > π(- 25).
5. , , 18,6 65N2 3 , 2,84105 .
. -, : .
, (65N2) = 93 /:
.
: 512,6 .