(C) For a zero order reaction,the rate law is given by $[A] = [A]_0 - kt$. At half-life,$[A] = \frac{[A]_0}{2}$,so $\frac{[A]_0}{2} = [A]_0 - kt_{1/2}

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Directly proportional to the initial concentration

(C) For a zero order reaction,the rate law is given by $[A] = [A]_0 - kt$. At half-life,$[A] = \frac{[A]_0}{2}$,so $\frac{[A]_0}{2} = [A]_0 - kt_{1/2}$. This simplifies to $t_{1/2} = \frac{[A]_0}{2k}$. Therefore,the half-life period is directly proportional to the initial concentration $[A]_0$.

Class 12 Chemistry Chemical Kinetics Zero order reaction

Medium

The half-life period of a zero order reaction is:

A
Inversely proportional to the concentration
B
Independent of the concentration
C
Directly proportional to the initial concentration
D
Directly proportional to the final concentration

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Chemical Kinetics

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Zero order reaction

Which of the following is the incorrect equation for the rate constant of a zero-order reaction?

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The rate of a certain reaction depends on concentration according to the equation $-dc/dt = (K_1 C) / (1 + K_2 C)$. What is the order when concentration $(C)$ is very high?

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For a zero order reaction,which of the following statements is false?

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If the initial concentration of a reactant is $a$,how much time will it take for a $100\%$ zero-order reaction to complete?

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For a general reaction $A \to B$,a plot of the concentration of $A$ versus time is given in the figure. Answer the following questions based on this graph:
$(i)$ What is the order of the reaction?
$(ii)$ What is the slope of the curve?
$(iii)$ What are the units of the rate constant?

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The half-life period of a zero order reaction is:

Similar Questions

Which of the following is the incorrect equation for the rate constant of a zero-order reaction?

The rate of a certain reaction depends on concentration according to the equation $-dc/dt = (K_1 C) / (1 + K_2 C)$. What is the order when concentration $(C)$ is very high?

For a zero order reaction,which of the following statements is false?

If the initial concentration of a reactant is $a$,how much time will it take for a $100\%$ zero-order reaction to complete?

For a general reaction $A \to B$,a plot of the concentration of $A$ versus time is given in the figure. Answer the following questions based on this graph:$(i)$ What is the order of the reaction?$(ii)$ What is the slope of the curve?$(iii)$ What are the units of the rate constant?

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For a general reaction $A \to B$,a plot of the concentration of $A$ versus time is given in the figure. Answer the following questions based on this graph:
$(i)$ What is the order of the reaction?
$(ii)$ What is the slope of the curve?
$(iii)$ What are the units of the rate constant?