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50.
(a) The disintegration energy for uranium235 “decaying” into thorium232 is
Q
3
=(
m
235
U
−
m
232
Th
−
m
3
He
)
c
2
=
(235
.
0439 u
−
232
.
0381 u
−
3
.
0160 u)(931
.
5MeV
/
u)
=
−
9
.
50 MeV
.
(b) Similarly, the disintegration energy for uranium235 decaying into thorium231 is
Q
4
m
235
U
−
m
231
Th
−
m
4
He
)
c
2
=
(235
.
0439 u
−
231
.
0363 u
−
4
.
0026 u)(931
.
/
u)
=4
.
66 MeV
.
(c) Finally, the considered transmutation of uranium235 into thorium230 has a
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.
 Fall '08
 SPRUNGER
 Physics, Energy

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