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Title:

??(Heat)

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Title: (Kinetic theory of gases) Created Date: 2/6/1999 2:01:59 AM Document presentation format: (4:3) – PowerPoint PPT presentation

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Title: ??(Heat)


1
??(Heat)
  • ?????????????????.
  • ?????????????????????.
  • ???????????????.
  • ???????

1.???. ????????????? ------????? ???????.
?????????.
2.???. ??????? ???? ------??????
??????????????(?????) ?????????? ??????????.
???????????.
2
  • ????

1. ????????
  • ????????----?????.

???????,??,? NA6.0231023?
?????????????????
  • ?????????????????.

3
2.???????
(1)???
????????????,????????
? M?V?E ?----????,?????. P?T
?----????,?????.
(2) ???
?????????????
???????????????.
4
??????????
??1
M????????,m??????
R???????
???????
??2
5
??3
??????
k R/NA 1.38?10 23 J/K
6
????????
1.?? V ???????????(????)
??????????,????????????
??(SI) m3 1L10-3 m3
2???p (????)
??P????????????????
?????????????????
?? 1Pa1N.m-2 ????? 1atm760mm.Hg1.013105Pa
7
4-1 ???? ?? ????????
3.??T
????????????,??????????????????(?????)
  • ????

??????????,???????????, ???????????????????
??
  • ?????(???????)

???? ? A?C???,?B?C??? ? A?B???
?????????????? ?????--- ???????
8
4-1 ???? ?? ????????
  • ????

??????????????? ???????????,?????
????????????????????
  • ?????????

(1)????? T,??K ??????? T3273.16K
(2)???? t ,??0C ????? t30.010C
00C??????,???????? 1000C???????
?? T273.16t
9
4-1 ???? ?? ????????
?????
???????????????????,??????????????????,???????
??????????,??????????????
??
(1)?????????? (2)?????????? (3)?????,???PV
??????????
10
5.1 ??????????
  • ????????????

????????????
????? 3?1019 ???/cm3 3????
??????????,???????
??????????? v 500m/s
?????????? z 1010 ?/?
??????,?????????????? ?????,???????,????????,
????????????
11
?. ????
1. ?????????????
  • ????????,????
  • (?????10-10m ltlt ????????10-9m)
  • ?????????????,???????
  • (????)
  • ????(????)
  • ??????

?????????????????????? ?????????????
12
2. ??????????
?????????
????????????????????
  • ???????????

(1)?????????????.
(2)??????????????(?????).
(3)???????.
13
  • ?????????????????

(1)?????????,???????????
(2)???????????????????????, ???????????
dV----???(???,???)
(3)???????????????????
14
4-2 ??????????
??????????
1??????
????????????????????
???????????
???????????????????????????????????,???????????
15
4-2 ??????????
2??????????????
  • ???????????

??? l1 , l2, l3??????,????N???????,????????m0
???i ???,??
16
?i??????A1???
x??????
?????????
dt ???????dA????????? ? ????
,??dA????
17
dt ???????????? dA ????
?dA????
  • ?????????

??????
18
4-2 ??????????
????????????????????
?
??
??????????
19
3.??
?????
  • ?????????????????????????????,??????????
  • ?????????????????

1)???????n ?????????? 2)????????????
??????????
20
?.???????
?????????????????
???????????????????
21
????????????
??????????,?????????????
  • ??????,??????????????,?????????????????????
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