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Standard XII
Chemistry
Rate of Reaction
Question
Determine the average life
U
238
having
t
1
/
2
=
140
days.
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Solution
Verified by Toppr
Half life period of
U
238
t
1
/
2
=
140
days.
Average life
=
?
τ
=
1
λ
=
t
1
/
2
0.693
=
140
0.693
d
a
y
s
τ
=
202.02
days
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