The rate constant is numerically the same for three reaction of first ,second and third order respectively.
Which one is true for rate of three reaction,if concentration of reactant is greater than 1M?
(1) r1=r2=r3
(2) r1<r2< r3
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Answered by
156
According to kinetic theory ,
Rate of first order reaction , r₁ = K₁[A]¹
Rate of 2nd order reaction , r₂ = K₂[A]²
Rate of 3rd order reaction , r₃ = K₃[A]³
A/C to question,
K₁ = K₂ = K₃ = K [ numerically, rate constant are same ]
And [A] > 1 M
So, [A]³ > [A]² > [A]
So, r₃ > r₂ > r₁
Hence, (2) is correct
Rate of first order reaction , r₁ = K₁[A]¹
Rate of 2nd order reaction , r₂ = K₂[A]²
Rate of 3rd order reaction , r₃ = K₃[A]³
A/C to question,
K₁ = K₂ = K₃ = K [ numerically, rate constant are same ]
And [A] > 1 M
So, [A]³ > [A]² > [A]
So, r₃ > r₂ > r₁
Hence, (2) is correct
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