1. . 2. 3. . 4. .
(U = A/q) =Uq, q = It, : =Ult, =I2Rt = U2/R t.
, , N = A/t, , N =UI = I2R = U2/R.
X. , . , , , , .
Q =I 2Rt.
, , (. 18). , , , .
, , , , ( ) . , . , . ξ= A/q
t q. : A = ξ q. q = It, A = ξ It. , R , . : Q =I2Rt +I2rt. = Q. , ξ=IR +Ir. . , . : I = ξ /(R +r). . , . . , , .
2
0,033 1,35 ×106 455. ( 273 , 101300)?
|
|
: V1=0,03 3 1=1,35×106 t1 = 455 2 = 101300 2 = 273 R= 8,31 / × |
V =? |
:
.:
pV = m / M × RT
, .
: 1V1= m / M × RT1
: 2V2 = m / M × RT2
, :
1V1/ 2V2 = T1/ T2
: 1V1 T2= 2V2 T1
:V2 = 1V1 T2 / 2 T1
: t1 = 455 1( )
1 = t1 +273 = 455+273=728 ()
:
V2 = 1,35×106×0,03×273 / 101300×728 ≈ 0,15 (3)
: V2≈ 0,15 (3)
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