>> . . 10 .

8.

 


8.9 Q = λm Qkp = -λm.

.

1

, (. 8.36). . 0,058 /, 2200 /3.

. NaCl Na l, . (Na l) . NaCl Na l. , 2NA , NA .

Na l l, l3. ( )

VM = l3 2NA.                     (8.10.1)

, , :

(8.10.1) (8.10.2)

2

, t1 = 75 , m2 = 0,4 t2 = 0 . t = = 50 . m1 ? 1 = 770 /( ) 2 = 4200 /( ). λ = 3,35 105 /. .

. , ,

Q1 = c1m1(t - t1)

, t < t1.

Q2 = λm2,

0 t

Q3 = 2m2(t - t2),

Q1 + Q2 + Q3 = ,

c1m1(t - t1) + λ2 + c2m2(t - t2) = 0.

3

m1 = 400 t1 = 5 . 200 (m2) t2 = 10 m3 = 400 t3 = -60 . t ? = 2,1 103 /( ) = 4,2 103 /( ). λ = 3,35 105 /.

. . , . , t0 = 0 ,

Q1 = cm1(t1 - t0) + m2(t2 - t0) = 16 800 .

0

Q2 = c2m2(t0 - t3) = 50 400 .

, , . Q3 = 33 600

500 500 , 0 .

4

, , , , t = 127 ? η = 80% ( ). = 120 /( ), t = 327 . λ = 2,5 104 /.

. m , υ .

, ,

Q = cm(t - t) + λm.

,

 

 

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