In the reaction `A rarr `products, time required to complete `50%` reaction was found to increase 9 times when the initial concentration of the reactant was decreased to one third. The rate law equation is `:`A. `-(d(A))/(dt)=K(A)^(1//2)`B. `-(d(A))/(dt)=K(A)`C. `-(d(A))/(dt)=K(A)^(2)`D. `-(d(A))/(dt)=K(A)^(3)`

In the reaction `A rarr `products, time required to complete `50%` rea

1.	In the reaction `A rarr `products, time required to complete `50%` reaction was found to increase 9 times when the initial concentration of the reactant was decreased to one third. The rate law equation is `:`A. `-(d(A))/(dt)=K(A)^(1//2)`B. `-(d(A))/(dt)=K(A)`C. `-(d(A))/(dt)=K(A)^(2)`D. `-(d(A))/(dt)=K(A)^(3)`
Answer» Correct Answer - D `t_(1//2)prop(1)^(n-1)` `(9)/(1)=((3)/(1))^(n-1)` `n-1=2` `n=3`

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