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JIPMER 2011
Exam
JIPMER
Year
2011
Subject
Chemistry
Chapter
Chemical Kinetics

JIPMER 2011 · Chemistry · Chemical Kinetics

The rate equation for a reaction, A B is r=k[A]^0 . If the initial...

The rate equation for a reaction, A⟶BA \longrightarrow B is r=k[A]0r=k[A]^0. If the initial concentration of the reactant is a moldm−3a \mathrm{~mol} \mathrm{dm}{ }^{-3}, the half-life period of the reaction is

Options

  1. Aa2k\frac{a}{2 k}
  2. Bka\frac{k}{a}
  3. Cak\frac{a}{k}
  4. D2ak\frac{2 a}{k}

Correct answer

A. a2k\frac{a}{2 k}

Step-by-step solution

A⟶BA \longrightarrow B ∵r=k[A]0\because \quad r=k[A]^0 or r=kr=k This is a zero order reaction. ∴t1/2=a2k\therefore \quad t_{1/2}=\frac{a}{2 k}
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