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Byju's Answer
Standard XII
Chemistry
Introduction
Time taken fo...
Question
Time taken for
N
H
2
N
O
2
to decompose 99% (in hrs) is __________.
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Solution
For the first order reaction
K
=
0.693
t
1
/
2
=
0.693
2.1
=
0.33
h
−
1
and
k
=
2.303
t
×
l
o
g
a
a
−
x
Here
x
=
0.99
a
t
=
2.303
0.33
×
2
=
13.96
h
o
u
r
s
t
=
14
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