Answer
64.8k+ views
Hint: Zero-order reactions are those reactions where the rate of reaction is independent of the increase or decrease in the concentration of reactants. Therefore, it is found that the rate of such reactions is always equal to their rate constants.
Complete step-by-step answer:
The kinetic equation of zero order is x = kt, where x is the quantity of reactant that is converted into product, k is the rate constant of the reaction and t is time taken to process the reaction.
\[100\% \] completion reaction occurs when the initial concentration of reactants is completely converted into a product. Let us assume that the initial concentration of reactant is \[a = {\left[ A \right]_0}\]. When this initial concentration gives rise to a product which is equal to it, then it is called a complete reaction. At this point, the value of x changes to a.
\[a = k \times {t_{100}}\] or we can write it as \[{t_{100}} = \dfrac{a}{k}\].
Therefore, for a reaction to be \[100\% \]completed, the time required in zero order reaction is \[{t_{100}} = \dfrac{a}{k}\].
Hence, the correct option is (A).
Note: The unit of the rate constant can be given by the ratio of concentration by time i.e. M/s or molarity per second.Zero order reactions are generally those reactions in which catalysts are used to process the reaction.
Complete step-by-step answer:
The kinetic equation of zero order is x = kt, where x is the quantity of reactant that is converted into product, k is the rate constant of the reaction and t is time taken to process the reaction.
\[100\% \] completion reaction occurs when the initial concentration of reactants is completely converted into a product. Let us assume that the initial concentration of reactant is \[a = {\left[ A \right]_0}\]. When this initial concentration gives rise to a product which is equal to it, then it is called a complete reaction. At this point, the value of x changes to a.
\[a = k \times {t_{100}}\] or we can write it as \[{t_{100}} = \dfrac{a}{k}\].
Therefore, for a reaction to be \[100\% \]completed, the time required in zero order reaction is \[{t_{100}} = \dfrac{a}{k}\].
Hence, the correct option is (A).
Note: The unit of the rate constant can be given by the ratio of concentration by time i.e. M/s or molarity per second.Zero order reactions are generally those reactions in which catalysts are used to process the reaction.
Recently Updated Pages
Write a composition in approximately 450 500 words class 10 english JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Arrange the sentences P Q R between S1 and S5 such class 10 english JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
What is the common property of the oxides CONO and class 10 chemistry JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
What happens when dilute hydrochloric acid is added class 10 chemistry JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
If four points A63B 35C4 2 and Dx3x are given in such class 10 maths JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
The area of square inscribed in a circle of diameter class 10 maths JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Other Pages
Electric field due to uniformly charged sphere class 12 physics JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Excluding stoppages the speed of a bus is 54 kmph and class 11 maths JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
In the ground state an element has 13 electrons in class 11 chemistry JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
A boat takes 2 hours to go 8 km and come back to a class 11 physics JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
According to classical free electron theory A There class 11 physics JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Differentiate between homogeneous and heterogeneous class 12 chemistry JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)