114810612 سلسلة الفيزياء رقم4 التحولات النووية
TRANSCRIPT
-
8/10/2019 4 114810612
1/6
4:
.2me bac SP
2011/2012:1
-
8/10/2019 4 114810612
2/6
-
.
Na2411.
-1
Na2411 Mg24
12.
1.1-.
(0, 5)
1.-
3t= 15h .
-
.
t0
= 0
V0= 5,00 mL 3 C0= 10-3mol.L-1.
.1-
n1
Na2411
t1= 3h
. .-
t1.
(NA= 6,02.1023 mol-1)(0,25)
.-
t1= 3hV2= 2,00 mL
n2= 2,1.10-9
mol
3.
Vp 5,00 L
. ((0, 5
.13 13
.
:
.1
C14
6
13 .
1.1 .C146
XA
Z.
.1 .MeVE.
2 .14
.
ta = 21,8 Bq .
a0= 28,7 Bq.
1. . 1317jours10.39,3 .
..(jours).
. .222
Be-B-N-O 4578
13:
ans5600t 2/1 1 an = 365 j1u = 931,5 MeV.c
-2
m( C146
) = 14,0111u :( C146
)
m(e
-
) = 0,00055u
:
m )X(AZ = 14,0076u : )X(AZ
3:
4:
.2me bac SP
2008:2
2008
-
8/10/2019 4 114810612
3/6
4:
.2me bac SP
:4 2012
-
8/10/2019 4 114810612
4/6
.235 1
4
.4
Ce
Zr:
eynxZrCenU 011
0
91
40
142
58
1
0
235
92 ..
1.1
1. xy.
1. Mev
4.1.3
Mev
1g
4
.4
.
.
-1 .ZA
2-
:
VeM.3-
0=1tj90=2t:
a1=1,26.1021Bqa2=8.10
20Bq
-1- t1/2
--N
2t.
-3-3
m()= 4,0026um( =205,9935um(
=210,0008u
1u=1,6610- Kg=931,5MeV/C ;mp=1,00727umn=1,008665u
18.10223MW .
.
4:
.2me bac SP
:5
:6
:7
2010/2011
2010/2011
2009/2010
-
8/10/2019 4 114810612
5/6
3:
.2me bac SP
:8
:9
2010
2009/2010
-
8/10/2019 4 114810612
6/6
3:
.2me bac SP
2009/2010:10