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Standard VII
Chemistry
Writing Chemical Equations
A first order...
Question
A first order reaction takes 20 minutes for 25% decomposition.calculate the time when 75% of the reaction will be completed.
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Q.
A first order reaction takes 20 minutes for 25% decomposition. Calculate the time when 75% of the reaction will be completed.
(Given:
l
o
g
2
=
0.3010
,
l
o
g
3
=
0.4771
,
l
o
g
4
=
0.6021
)
Q.
A first order reaction takes 16 minutes for 50% completion, it would take a total of
minutes for the reaction to be 75% complete.
Q.
The time taken for
10
%
completion of a first order reaction is
20
minutes. Then, for
19
%
completion, the reaction will take:
Q.
A first order reaction is
75
%
completed in
100
m
i
n
u
t
e
s
. How long time will it take for its
87.5
%
completion?
Q.
75
%
of a first order reaction was completed in
32
m
i
n
u
t
e
s
.
When was
50
%
of the reaction will be completed?
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