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t1/4 can be taken as the time taken for the concentration of a reactant to drop to 3/4 of its initial value.
If the rate constant for a first order reaction is K, t1/4  can be written as –           [AIEEE-2005]
  • a)
    0.29/K
  • b)
    0.10/K
  • c)
    0.75/K
  • d)
    0.69/K
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
t1/4 can be taken as the time taken for the concentration of a reactan...
The correct answer is option A
Let initial concentration be ao​
After concentration decreases by

Using first order kinetic equation,
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t1/4 can be taken as the time taken for the concentration of a reactan...
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t1/4 can be taken as the time taken for the concentration of a reactan...
The correct answer is option A
Let initial concentration be ao​
After concentration decreases by

Using first order kinetic equation,
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