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Chemical Kinetics — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryChemical Kinetics2 Marks
Question
If the value of rate constants are same for three reactions whose orders are 1,2 , and 3 , then what will be the order of the rates of these reactions if the value of concentration is 1 M , less than 1 M and more than 1 M ?
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Answer

Let $R \longrightarrow$ Product
For first order, Rate $\left( v _1\right)= k [ R ]$
For second order, Rate $\left(v_2\right)=k[R]^2$
For third order, Rate $\left(v_3\right)=k[R]^3$
when $[R]=1$, then $v_1=v_2=v_3$
when $[R]<1$, then $v_1>v_2>v_3$
And when $[ R ]>1$, then $v _1< v _2< v _3$

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