Askhseis_thermodynamikhs
description
Transcript of Askhseis_thermodynamikhs
-
/ .
. . . .
1. ) .
) pi ; pi pi pipi.
) ;
2. pi , pi, , pi
.
3. pi : =1/T =1/
pi T pi.
4. pi :
pi T pi.
5. pi :
6. dV=2pirhdr+pir2dh .
7. ; pi Euler.
8. pi :
9. pi df pi l, :
pi ,
Young.
( )V
=
dPdTVdV
=
dll
AYAYdTdf +=
PT TP
=
-
2
10. pi pi pi P. pi pi
, pi , . pi pi
Vc .
11. V1 ,pi pi , pi pi pi pi .
pi pi ,
pi . pi pi
pi pi V1 V2 (pi V1 >V2).
12. pi pi : P(V-b)=nRT. pi pi pi
pi V1 V2 (pi V1
-
3
pi pi V1 V2 . pi pi pi,
pi .
pi.
=12
2
1
2 11lnVV
annbVnbV
nRTW
17. 5 l , pi 10 atm 20 oC 10 l. i. pi ii. pi pi pi 1 atm, iii. pi pi pi .
18. pi 1 kg , pi , pi 0 500 atm. pi pi T pi ,
pi . (: =10 g/cm3 =0,68 10 4 atm-1).
19. 2 mol T= 20 oC P1=10 atm pi pi pi pi Pe=1 atm. pi pi
pi. pi
pi pi pi P1=10 atm P2=1 atm.
20. , pi pi V1 V2, :
21. 2 mol 293,15 pi 1 dm3 pi 1 atm. (cV=3 cal/mol K).
22. 14 g N2 pi pi 1 atm pi 288,15 258,15 . 2 pi . pi pi . : cP=6,01 cal/mol K, R=2 cal/mol K.
23. pi pi pi pi pi : dW=PdV. pi V=V(P,T), dW pi ; pi pipi pi ; dW, pi , pi ;
24. pi dq pi pi ,
( ) RTbVPi =)
+=
VbRTPVii 1)
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4
25. , pi cz =R. pi cv =3R/2, pi pi , pi ( PV3=K).
26. pi : cp cV =R
27. pi pi i f. ( pi : W=(PfVf PIVI)/(1-) pi =cP cv )
28. :
)ln2ln5(2
)n
VRn
URAnSiv ++=
v) 2
1
25
nP
SAU =
pi pi
; . pi pi pi;
29. :
25
2
(RT)P
nRTlnG ln ==oP
Pn
SAH
, pi,
pi pi .
R, vo,, , pi , n s, u, v, pi ,
..
( ) 3131
o
2
v
RS ) nVU
=
32
32
2
RS )
=VnUii
21
25
23
21
ovu iii)v
s
R
=
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5
Ypi pi . pi .
30. 10 g 0,84 J/g K 50 oC 10 oC . pi . pi
10 oC , pi .
31. pi pi Cu, R=20 , 20 oC pi 2 pi 1s. pi . pi pi ; (: cP=0,384 J/g K m=15 g)
32. 20 oC CP pi pi 80 oC. pi . pi pi
50 oC pi 80 oC pi pi ; pi 80 oC, pi pi pi 20 80 oC , pi pi ;
33. CP 1 pi pi , 2 (1
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6
pi 2.
(pi. W= CP {(T12/ T2 )+T2 -2 T1} 38. 50 g 2 10 C pi -5 C pi
pi. pi pi
pi . (: pi cP()=4.2 J/g K cP(pi)=2.1 J/g K , pi 0 C, h=335 J/g)
39. 100g 50C 200g pi -5 C pi . (: pi cP()=4.2 J/g K cP(pi)=2.1 J/g K , pi 0 C, h=335 J/g)
40. pi 2 pi 0 C pi pi, pi pi pi.
pi 100g 2 (), 268.15 . , pi .
, pi pi
pi . (: pi cP()=4.2 J/g K cP(pi)=2.1 J/g K , pi 0 C, h=335 J/g)
41. pi pi -10 C pi pipi pi 200g 20 C pi pi 0 C. (: pi cP()=4.2 J/g K cP(pi)=2.1 J/g K , pi 0 C, h=335 J/g) pi pi .
42. V1=3 dm3 V2=1 dm3 . 1 ( V1) pi pi 1atm 293,15 2 . pi.
pi pi
.
43. pi pi pi :
44. :
pi ; .
45. pi 1 2 pi pi pi .
pi
; pi .
++= VCPCS PV lnln
PdVTdSdU =
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7
46. , pi . Vo ( ) pi . 1 pi T , 2 pi /2 T. pi pi, pi
pi pi
pi.
47. pi 2 CP =+T+cT2, pi pi , T1, (1