1. , V 1 = 5 1 = 1 , 3 . 2 , .
2. m = 10 V 1 V 2 = 2 V 1. , = 900 .
3. 5 V 1 V 2=2 V 1. 1 . .
4. 1 =300 1=0,5 . 2 . , =-432 . : 1) ; 2) .
5. ν = 5 1 = 273 2 = 373 Q = 14,54 . .
6. m = 10 Δ T = 200 , Q = 40 . Δ u . = 210-3 /.
7. 2 400 300 . , .
8. m = 280 P = 1 . , Q = 5 , 1 = 290 .
9. ν = 2 Δ T = 90 5,25 . , , .
10. ν 1 2 , Q. .
11. 20 , 300 , , 5 , . , .
12. 1 , 0 5 , 1 . ? ?
13. m = 20 Δ U = 8 2 = 900 . , Δ T P 2, 1 = 200 .
14. m = 1 1 = 300 V 1 = 0,5 3. 3 . , .
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15. m = 2 , T 1 = 300 , , n = 10 . T 2 .
16. m = 1 T 1= 300 V 1= 0,5 3. 3 . : 1) ; 2) ; 3) . = 2810-3 /.
17. m = 64 , V 1 = 0,5 1= 1 , n = 3 . , , .
18. 64 , , 3 . .
19. 20 . , 5 , , 5 . , .
20. ,
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21. , . 3 , 2 . .
22. , , 2 , 4 . .
23. , n = 4 . ... .
24. , V 1 = 5 p 1 = 1 , n = 3 . , , . , 64 ?
25. 64 , 2 , , 2 . .
26. , V 1 = 10 P 1 = 0,2 , V 2 = 28 . , Q, .
27. m = 10 t 1 = 50 t 2 = 150. Δ S , : ) ; ) .
28. m = 100 , 3 , , 3 . .
29. 2 , 40 270 , , 320? 0,002 /.
30. 1,7 , . ?
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31. (ν = 2 ) , n 1 = 2 , , n 2= 2 . .
32. v . n , γ.
33. , . .
34. Δ S m = 8 V 1 = 10 V 2 = 40 = 353 .
35. Δ S m = 8 V 1 = 10 t 1=80ºC V 2 = 40 t 2 = 300ºC.
36. 8 10 40 , 30, 300?
37. Δ S m = 10 (t = 20º) (t = 100º). = 2100 /, λ = 335 /, = 4200 /, τ = 2,3 /.
38. 2 , -130, 00 . . (λ=3,35.105 /, =2,1.103 /(.))
39. , . . -? , , .
40. 300 , , , 100 . . . , .
41. m 1 = 5 1 = 280 m 2 = 8 2 = 350 . : 1) ; 2) ΔS, . = 4200 /.
42. , ν1 2 , ν2 4 .
43. 3- 2- , 20 / 4 /?
44. V . w 1 = 0,8 w 2 = 0,2. 1 = 2010-3 /, 2 = 210-3 /.
45. . V , 0,5. 4 / 28 /
46. 2 1 . , V . = 2810-3 /, = 4010-3 /.
47. , . 1 = 3210-3 /, 2 = 4410-3 /.
48. γ , m 1 = 8 m 2 = 2 . 1 = 410-3 /, 2 = 210-3 /.
49. , 7 20 . = 2810-3 /, = 410-3 /.