Which of the following statements about half-lives is correct? A.The half-life f

Question

Which of the following statements about half-lives is correct?

A.The half-life for second-order reactions is independent of the initial concentration of a reactant. B.The half-life for second-order reactions is doubled if the initial concentration of a reactant is doubled. C.The half-life for first-order reactions is doubled if the initial concentration of a reactant is doubled. D.The half-life for zero-order reactions is doubled if the initial concentration of a reactant is doubled. E.The half-life for zero-order reactions is doubled if the initial concentration of a reactant is halved.

Explanation / Answer

statement D is correct

Explaination:

The formula for half life of zero order reaction

t 1/2 ( zero order reaction ) = [A]0 / 2 k  

There is direct relation of half life and initial concentration so statement D is correct

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