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QJEEM06Ch69e1: JEE Main 2006 Chemistry - Class 12 JEEM06Ch69e1 Solution: A reaction was found to be second order with respect to the…

A reaction was found to be second order with respect to the concentration of carbon monoxide. If the concentration of carbon monoxide is doubled, with everything else kept the same, the rate of reaction will

Multiple Choice Options

  • A remain unchanged
  • B triple
  • C increase by a factor of 4
  • D double

Step-by-Step Verified Solution

Since the reaction is 2nd order w.r.t CO. Thus, rate law is given as.

r=k[CO]2

Let initial concentration of CO is a i.e. [CO]=a

∴ r1=k(a)2=ka2

when concentration becomes doubled, i.e. [CO]=2a

∴ r2=k(2a)2=4ka2

∴ r2=4r1

So, the rate of reaction becomes 4 times.

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