In a reaction involving one single reactant, the fraction of the reactant consumed may be defined as f=(1−CC0) where C0 and C are the concentrations of the reactant at the after time, t. For a first order reaction:
A
dfdt=k(1−f)
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B
−dfdt=kf
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C
−dfdt=k(1−f)
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D
dfdt=kf
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Solution
The correct option is Adfdt=k(1−f)
Integrated rate equation for 1st order reaction
K=2.303tlog[A]1[A]2
Where [A]1 is the initial concentration and [A]2 is the concentration of A at time t
Given initial concentration is C0 and concentration at time t is C