Termodin mica 1

! " # " $% & '
$ 0o $" 100o ( ) ' *+ ), *$+ -, *+ , *
+ . *+ *+ /0 1 2 3 $0 % $
0 4 5 #
#
" %
6 & ) 0 6 000 7, 899 *$+
899 9 0 36, 5o , *+ 899 % : ; <61 39, 2o $ 0, 2o & *+ 899 , *$+
899 7, *+ 7
= )9 > ? )$
? 4@ 7 $" <@ 7 A
< & % 0 ab # " 0 α &A 0 ΔT a Δa b Δb B % Δa Δb 99
* #+ ΔA = 2α A ΔT Δa
a
b
11
00
00
11
00
11
00
11
Δb
Δ a Δb
@ C 9 $A ) B
: ; 3 60, 0 #
" 0 3 × 10−6 D o & ) B
+3o
+30o E " % 3 9
2 # " 0 β *+ ρDρ0 ! t ρ0 ! t0 *$+ 0
E
B =6 β 0 $ U $9 % * t0+ A * t+ C h0 h : ? β * # " "
+ $ U " *+ ? 0
t0 = 0o t = 20o h0 = 1 h = 1, 03 # " 0 h0
h
banho de oleo
1111111111111
0000000000000
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
0000000000000
1111111111111
banho de gelo
t
t0
& # ( $ " ?
> >
" 0 & ? $ # 1 " > # " 0 1, 1 × 10−5 D o & $ # 2 > # " 0 2, 3 × 10−5 D o E
1 2 0, 5
O
l
l1
m
l2