Chemical Kinetics and Nuclear ChemistryHard
Question
Number of natural life times (Tav) required for a first-order reaction to achieve 99.9% level of completion is :
Options
A.2.3
B.6.9
C.9.2
D.0.105
Solution
We know
k =
99.9% completion
a = 100
a × x = (100 - 99.90) = .10
Then t =
t = 2.303 × 3 ×
t = 6.9 × tav
k =
99.9% completion
a = 100
a × x = (100 - 99.90) = .10
Then t =
t = 2.303 × 3 ×
t = 6.9 × tav
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