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Tardigrade
Question
Chemistry
99 % at a first order reaction was completed in 32 min. When will 99.9 % of the reaction complete?
Q.
99%
at a first order reaction was completed in
32
min. When will
99.9%
of the reaction complete?
4028
231
Chemical Kinetics
Report Error
A
48 min
72%
B
46 min
9%
C
50 min
8%
D
45 min
11%
Solution:
k
×
32
=
l
n
(
1
100
)
.....
(
i
)
k
2
×
t
=
l
n
(
0.1
100
)
...
(
ii
)
e
q
(
ii
)
(
i
)
32
t
=
2
l
n
10
3
l
n
10
t
=
48
min