For a first order reaction, $A ightarrow$ products, the rate of reaction at $\lbrack A brack = 0.2\ M$ is $1.0 imes 10^{- 2}\ mol\ L^{- 1}\min^{- 1}.$ The half-life period for the reaction is

Question

For a first order reaction, $A ightarrow$ products, the rate of reaction at $\lbrack Abrack = 0.2\ M$ is $1.0 	imes 10^{- 2}\ mol\ L^{- 1}\min^{- 1}.$ The half-life period for the reaction is

Dr. Abubacker · Accepted Answer

(c)
Rate $= k\lbrack Abrack$
$	herefore k = \frac{10^{- 2}}{0.2} = 5 	imes 10^{- 2}$
Now, $t_{1/2} = \frac{0.693}{k} = \frac{0.693}{5\  	imes \ 10^{- 2}} = 13.86\ \min$

Q. For a first order reaction, $A \rightarrow$ products, the rate of reaction at $\lbrack A\rbrack = 0.2\ M$ is $1.0 \times 10^{- 2}\ mol\ L^{- 1}\min^{- 1}.$ The half-life period for the reaction is

Explanation

Reviewed by Dr. Abubacker

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