Chemical Kinetics Question 239

Question: For a given reaction $ 3A+B\to C+D $ the rate of reaction can be represented by [DCE 2000]

Options:

A) $ -\frac{1}{3}\frac{d[A]}{dt}=\frac{-d[B]}{dt}=\frac{+d[C]}{dt}=\frac{+d[D]}{dt} $

B) $ -\frac{1}{3}\frac{d[A]}{dt}=\frac{d[C]}{dt}=K{{[A]}^{m}}{{[B]}^{n}} $

C) $ +\frac{1}{3}\frac{d[A]}{dt}=\frac{-d[C]}{dt}=K{{[A]}^{n}}{{[B]}^{m}} $

D) None of these

Show Answer

Answer:

Correct Answer: A

Solution:

$ -\frac{1}{3}\frac{d[A]}{dt}=-\frac{d[B]}{dt}=\frac{+d[C]}{dt}=\frac{+d(D)}{dt} $ .



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