1. : .
2.
:
. (1)
, , :
, (2)
, (3)
S 0(0) = 0 K, 0 3- . , :
, (4)
, (5)
, (6)
ai, Q i (i = 1,2,..) , .
3.
21,83302,79 .
.1.
( -1-1)
T, K | Cp, /(*K) | T, K | Cp, /(*K) | T, K | Cp, /(*K) |
0,00 | 0,00 | 54,68 | 62,68 | 193,9 | 184,75 |
2,00 | 0,01 | 57,11 | 66,03 | 196,12 | 186,77 |
4,00 | 0,09 | 59,86 | 69,64 | 198,48 | 190,13 |
6,00 | 0,31 | 63,25 | 73,91 | 200,24 | 190,19 |
8,00 | 0,74 | 65,98 | 77,46 | 204,8 | 194,99 |
10,00 | 1,44 | 67,06 | 78,76 | 205,84 | 195,03 |
12,00 | 2,49 | 67,07 | 78,78 | 213,59 | 202,59 |
14,00 | 3,95 | 69,56 | 81,85 | 214,6 | 201,75 |
16,00 | 5,90 | 73,87 | 86,81 | 223,45 | 209,32 |
18,00 | 8,41 | 75,57 | 88,66 | 226,5 | 210,98 |
20,00 | 11,53 | 75,67 | 88,76 | 233,11 | 216,44 |
21,83 | 15,40 | 76,16 | 89,31 | 237,98 | 219,38 |
21,88 | 15,47 | 81,41 | 94,23 | 242,52 | 223,80 |
24,08 | 19,08 | 84,16 | 98,20 | 248,53 | 229,47 |
24,34 | 19,44 | 90,11 | 103,32 | 251,68 | 231,36 |
26,41 | 22,59 | 91,93 | 105,87 | 258,68 | 236,82 |
26,52 | 22,74 | 100,29 | 111,02 | 260,58 | 238,30 |
28,48 | 25,91 | 102,5 | 113,77 | 268,44 | 244,60 |
29,13 | 26,56 | 111,75 | 122,09 | 269,12 | 245,23 |
30,76 | 28,87 | 115,51 | 124,84 | 275,58 | 250,27 |
32,12 | 30,85 | 123,56 | 131,92 | 281,07 | 254,48 |
33,34 | 32,59 | 127,53 | 133,71 | 287,81 | 259,94 |
34,95 | 135,29 | 141,00 | 295,77 | 266,03 | |
36,02 | 36,35 | 138,8 | 142,94 | 302,79 | 271,29 |
39,36 | 41,12 | 146,2 | 149,26 | ||
40,22 | 42,38 | 149,48 | 150,69 | ||
44,77 | 48,84 | 157,19 | 157,06 | ||
45,76 | 50,22 | 160,8 | 159,51 | ||
49,65 | 55,75 | 168,85 | 165,63 | ||
51,15 | 57,87 | 181,33 | 173,70 |
4.
.1. 0 Cp = a T 3. a 21,8324,08 ; a = 0,001441.
|
|
.1. ,
Cp = f (T) Cp / T = f (T) . 298 .1.
.2. 298
[.] | |||
S o298 ×1×1 | ×1 | S o298 ×1×1 | ×1 |
280,64 | 42416,55 | 283,47 | 43057,07 |
5. Cp (T) = f (T) Cp / T = f (T)
, fminsi, .3. .2 , .
.3. (4)
a 1 | Q1 | a 2 | Q2 | a 3 | Q3 | a 4 | Q4 |
2,12 | 89,32 | 10,27 | 1447,19 | 4,03 | 259,28 | 4,92 | 765,77 |
.2. (4),
, (4)-(6), .4.
.4.
T, K | Cp, ×1×1 | , ×1×1 | , ×1 |
56,19 | 36,51 | 1099,28 | |
112,10 | 96,87 | 5432,07 | |
190,19 | 187,67 | 20573,99 | |
267,52 | 269,63 | 43029,43 | |
269,02 | 271,23 | 43565,97 | |
336,16 | 346,16 | 73970,08 | |
385,64 | 410,81 | 110200,13 |
6. :
1) ;
2) S oT T = 298 ;
3) , , (5) (6) .