(A) For a first order reaction,the rate law is given by: $r = K[A]$.Given: $r = 0.01 \ mol \ dm^{-3} \ s^{-1}$ and $[A] = 0.2 \ M$ (or $0.2 \ mol \ dm

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(A) For a first order reaction,the rate law is given by: $r = K[A]$.Given: $r = 0.01 \ mol \ dm^{-3} \ s^{-1}$ and $[A] = 0.2 \ M$ (or $0.2 \ mol \ dm^{-3}$).Substituting the values into the rate equation:$0.01 = K \times 0.2$$K = \frac{0.01}{0.2} = 0.05 \ s^{-1}$.

Class 12 Chemistry Chemical Kinetics First Order reaction

Medium

Rate of first order reaction $A \rightarrow \text{product}$ is $0.01 \ mol \ dm^{-3} \ s^{-1}$. Calculate the rate constant if the concentration of the reactant is $0.2 \ M$. (in $s^{-1}$)

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A
$0.05$
B
$0.1$
C
$0.5$
D
$0.01$

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Chemical Kinetics

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First Order reaction

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Rate of first order reaction $A \rightarrow \text{product}$ is $0.01 \ mol \ dm^{-3} \ s^{-1}$. Calculate the rate constant if the concentration of the reactant is $0.2 \ M$. (in $s^{-1}$)

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The half-life period of a first order reaction is $15 \ minutes$. The amount of substance left after one hour will be

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