Q.
The rate constant is numerically equal for three reactions of first, second and third order respectively. Which of the following is true?
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a
If [A]>1;r3>r2>r1
b
If [A]=1;r1=r2=r3
c
If [A]<1;r1>r2>r3
d
All of these are true
answer is D.
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Detailed Solution
Consider a reaction A →Products ∴ r1=k[A]1 for1 st order ......(i) r2=k[A]2 for 2nd order ....(ii) r3=k[A]3 for 3rd order .....(iii)∴ k is same in all the three cases. If [A]=1, r1=r2=r3If[A]<1, r1>r2>r3 If [A]>1, r3>r2>r1
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